/core/src/main/java/org/bitcoin/paymentchannel/Protos.java

// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: paymentchannel.proto

package org.bitcoin.paymentchannel;

public final class Protos {
  private Protos() {}
  public static void registerAllExtensions(
      com.google.protobuf.ExtensionRegistry registry) {
  }
  public interface TwoWayChannelMessageOrBuilder
      extends com.google.protobuf.MessageOrBuilder {

    // required .paymentchannels.TwoWayChannelMessage.MessageType type = 1;
    /**
     * <code>required .paymentchannels.TwoWayChannelMessage.MessageType type = 1;</code>
     *
     * <pre>
     * This is required so if a new message type is added in future, old software aborts trying
     * to read the message as early as possible. If the message doesn't parse, the socket should
     * be closed.
     * </pre>
     */
    boolean hasType();
    /**
     * <code>required .paymentchannels.TwoWayChannelMessage.MessageType type = 1;</code>
     *
     * <pre>
     * This is required so if a new message type is added in future, old software aborts trying
     * to read the message as early as possible. If the message doesn't parse, the socket should
     * be closed.
     * </pre>
     */
    org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.MessageType getType();

    // optional .paymentchannels.ClientVersion client_version = 2;
    /**
     * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
     *
     * <pre>
     * Now one optional field for each message. Only the field specified by type should be read.
     * </pre>
     */
    boolean hasClientVersion();
    /**
     * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
     *
     * <pre>
     * Now one optional field for each message. Only the field specified by type should be read.
     * </pre>
     */
    org.bitcoin.paymentchannel.Protos.ClientVersion getClientVersion();
    /**
     * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
     *
     * <pre>
     * Now one optional field for each message. Only the field specified by type should be read.
     * </pre>
     */
    org.bitcoin.paymentchannel.Protos.ClientVersionOrBuilder getClientVersionOrBuilder();

    // optional .paymentchannels.ServerVersion server_version = 3;
    /**
     * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
     */
    boolean hasServerVersion();
    /**
     * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
     */
    org.bitcoin.paymentchannel.Protos.ServerVersion getServerVersion();
    /**
     * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
     */
    org.bitcoin.paymentchannel.Protos.ServerVersionOrBuilder getServerVersionOrBuilder();

    // optional .paymentchannels.Initiate initiate = 4;
    /**
     * <code>optional .paymentchannels.Initiate initiate = 4;</code>
     */
    boolean hasInitiate();
    /**
     * <code>optional .paymentchannels.Initiate initiate = 4;</code>
     */
    org.bitcoin.paymentchannel.Protos.Initiate getInitiate();
    /**
     * <code>optional .paymentchannels.Initiate initiate = 4;</code>
     */
    org.bitcoin.paymentchannel.Protos.InitiateOrBuilder getInitiateOrBuilder();

    // optional .paymentchannels.ProvideRefund provide_refund = 5;
    /**
     * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
     */
    boolean hasProvideRefund();
    /**
     * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
     */
    org.bitcoin.paymentchannel.Protos.ProvideRefund getProvideRefund();
    /**
     * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
     */
    org.bitcoin.paymentchannel.Protos.ProvideRefundOrBuilder getProvideRefundOrBuilder();

    // optional .paymentchannels.ReturnRefund return_refund = 6;
    /**
     * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
     */
    boolean hasReturnRefund();
    /**
     * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
     */
    org.bitcoin.paymentchannel.Protos.ReturnRefund getReturnRefund();
    /**
     * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
     */
    org.bitcoin.paymentchannel.Protos.ReturnRefundOrBuilder getReturnRefundOrBuilder();

    // optional .paymentchannels.ProvideContract provide_contract = 7;
    /**
     * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
     */
    boolean hasProvideContract();
    /**
     * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
     */
    org.bitcoin.paymentchannel.Protos.ProvideContract getProvideContract();
    /**
     * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
     */
    org.bitcoin.paymentchannel.Protos.ProvideContractOrBuilder getProvideContractOrBuilder();

    // optional .paymentchannels.UpdatePayment update_payment = 8;
    /**
     * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
     */
    boolean hasUpdatePayment();
    /**
     * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
     */
    org.bitcoin.paymentchannel.Protos.UpdatePayment getUpdatePayment();
    /**
     * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
     */
    org.bitcoin.paymentchannel.Protos.UpdatePaymentOrBuilder getUpdatePaymentOrBuilder();

    // optional .paymentchannels.Close close = 9;
    /**
     * <code>optional .paymentchannels.Close close = 9;</code>
     */
    boolean hasClose();
    /**
     * <code>optional .paymentchannels.Close close = 9;</code>
     */
    org.bitcoin.paymentchannel.Protos.Close getClose();
    /**
     * <code>optional .paymentchannels.Close close = 9;</code>
     */
    org.bitcoin.paymentchannel.Protos.CloseOrBuilder getCloseOrBuilder();

    // optional .paymentchannels.Error error = 10;
    /**
     * <code>optional .paymentchannels.Error error = 10;</code>
     */
    boolean hasError();
    /**
     * <code>optional .paymentchannels.Error error = 10;</code>
     */
    org.bitcoin.paymentchannel.Protos.Error getError();
    /**
     * <code>optional .paymentchannels.Error error = 10;</code>
     */
    org.bitcoin.paymentchannel.Protos.ErrorOrBuilder getErrorOrBuilder();
  }
  /**
   * Protobuf type {@code paymentchannels.TwoWayChannelMessage}
   *
   * <pre>
   * This message is designed to be either sent raw over the network (e.g. length prefixed) or embedded inside another
   * protocol that is being extended to support micropayments. In this file "primary" typically can be read as "client"
   * and "secondary" as "server".
   * </pre>
   */
  public static final class TwoWayChannelMessage extends
      com.google.protobuf.GeneratedMessage
      implements TwoWayChannelMessageOrBuilder {
    // Use TwoWayChannelMessage.newBuilder() to construct.
    private TwoWayChannelMessage(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
      super(builder);
      this.unknownFields = builder.getUnknownFields();
    }
    private TwoWayChannelMessage(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }

    private static final TwoWayChannelMessage defaultInstance;
    public static TwoWayChannelMessage getDefaultInstance() {
      return defaultInstance;
    }

    public TwoWayChannelMessage getDefaultInstanceForType() {
      return defaultInstance;
    }

    private final com.google.protobuf.UnknownFieldSet unknownFields;
    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
        getUnknownFields() {
      return this.unknownFields;
    }
    private TwoWayChannelMessage(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      initFields();
      int mutable_bitField0_ = 0;
      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
          com.google.protobuf.UnknownFieldSet.newBuilder();
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!parseUnknownField(input, unknownFields,
                                     extensionRegistry, tag)) {
                done = true;
              }
              break;
            }
            case 8: {
              int rawValue = input.readEnum();
              org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.MessageType value = org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.MessageType.valueOf(rawValue);
              if (value == null) {
                unknownFields.mergeVarintField(1, rawValue);
              } else {
                bitField0_ |= 0x00000001;
                type_ = value;
              }
              break;
            }
            case 18: {
              org.bitcoin.paymentchannel.Protos.ClientVersion.Builder subBuilder = null;
              if (((bitField0_ & 0x00000002) == 0x00000002)) {
                subBuilder = clientVersion_.toBuilder();
              }
              clientVersion_ = input.readMessage(org.bitcoin.paymentchannel.Protos.ClientVersion.PARSER, extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(clientVersion_);
                clientVersion_ = subBuilder.buildPartial();
              }
              bitField0_ |= 0x00000002;
              break;
            }
            case 26: {
              org.bitcoin.paymentchannel.Protos.ServerVersion.Builder subBuilder = null;
              if (((bitField0_ & 0x00000004) == 0x00000004)) {
                subBuilder = serverVersion_.toBuilder();
              }
              serverVersion_ = input.readMessage(org.bitcoin.paymentchannel.Protos.ServerVersion.PARSER, extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(serverVersion_);
                serverVersion_ = subBuilder.buildPartial();
              }
              bitField0_ |= 0x00000004;
              break;
            }
            case 34: {
              org.bitcoin.paymentchannel.Protos.Initiate.Builder subBuilder = null;
              if (((bitField0_ & 0x00000008) == 0x00000008)) {
                subBuilder = initiate_.toBuilder();
              }
              initiate_ = input.readMessage(org.bitcoin.paymentchannel.Protos.Initiate.PARSER, extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(initiate_);
                initiate_ = subBuilder.buildPartial();
              }
              bitField0_ |= 0x00000008;
              break;
            }
            case 42: {
              org.bitcoin.paymentchannel.Protos.ProvideRefund.Builder subBuilder = null;
              if (((bitField0_ & 0x00000010) == 0x00000010)) {
                subBuilder = provideRefund_.toBuilder();
              }
              provideRefund_ = input.readMessage(org.bitcoin.paymentchannel.Protos.ProvideRefund.PARSER, extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(provideRefund_);
                provideRefund_ = subBuilder.buildPartial();
              }
              bitField0_ |= 0x00000010;
              break;
            }
            case 50: {
              org.bitcoin.paymentchannel.Protos.ReturnRefund.Builder subBuilder = null;
              if (((bitField0_ & 0x00000020) == 0x00000020)) {
                subBuilder = returnRefund_.toBuilder();
              }
              returnRefund_ = input.readMessage(org.bitcoin.paymentchannel.Protos.ReturnRefund.PARSER, extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(returnRefund_);
                returnRefund_ = subBuilder.buildPartial();
              }
              bitField0_ |= 0x00000020;
              break;
            }
            case 58: {
              org.bitcoin.paymentchannel.Protos.ProvideContract.Builder subBuilder = null;
              if (((bitField0_ & 0x00000040) == 0x00000040)) {
                subBuilder = provideContract_.toBuilder();
              }
              provideContract_ = input.readMessage(org.bitcoin.paymentchannel.Protos.ProvideContract.PARSER, extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(provideContract_);
                provideContract_ = subBuilder.buildPartial();
              }
              bitField0_ |= 0x00000040;
              break;
            }
            case 66: {
              org.bitcoin.paymentchannel.Protos.UpdatePayment.Builder subBuilder = null;
              if (((bitField0_ & 0x00000080) == 0x00000080)) {
                subBuilder = updatePayment_.toBuilder();
              }
              updatePayment_ = input.readMessage(org.bitcoin.paymentchannel.Protos.UpdatePayment.PARSER, extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(updatePayment_);
                updatePayment_ = subBuilder.buildPartial();
              }
              bitField0_ |= 0x00000080;
              break;
            }
            case 74: {
              org.bitcoin.paymentchannel.Protos.Close.Builder subBuilder = null;
              if (((bitField0_ & 0x00000100) == 0x00000100)) {
                subBuilder = close_.toBuilder();
              }
              close_ = input.readMessage(org.bitcoin.paymentchannel.Protos.Close.PARSER, extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(close_);
                close_ = subBuilder.buildPartial();
              }
              bitField0_ |= 0x00000100;
              break;
            }
            case 82: {
              org.bitcoin.paymentchannel.Protos.Error.Builder subBuilder = null;
              if (((bitField0_ & 0x00000200) == 0x00000200)) {
                subBuilder = error_.toBuilder();
              }
              error_ = input.readMessage(org.bitcoin.paymentchannel.Protos.Error.PARSER, extensionRegistry);
              if (subBuilder != null) {
                subBuilder.mergeFrom(error_);
                error_ = subBuilder.buildPartial();
              }
              bitField0_ |= 0x00000200;
              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e.getMessage()).setUnfinishedMessage(this);
      } finally {
        this.unknownFields = unknownFields.build();
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_TwoWayChannelMessage_descriptor;
    }

    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_TwoWayChannelMessage_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.class, org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.Builder.class);
    }

    public static com.google.protobuf.Parser<TwoWayChannelMessage> PARSER =
        new com.google.protobuf.AbstractParser<TwoWayChannelMessage>() {
      public TwoWayChannelMessage parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return new TwoWayChannelMessage(input, extensionRegistry);
      }
    };

    @java.lang.Override
    public com.google.protobuf.Parser<TwoWayChannelMessage> getParserForType() {
      return PARSER;
    }

    /**
     * Protobuf enum {@code paymentchannels.TwoWayChannelMessage.MessageType}
     */
    public enum MessageType
        implements com.google.protobuf.ProtocolMessageEnum {
      /**
       * <code>CLIENT_VERSION = 1;</code>
       */
      CLIENT_VERSION(0, 1),
      /**
       * <code>SERVER_VERSION = 2;</code>
       */
      SERVER_VERSION(1, 2),
      /**
       * <code>INITIATE = 3;</code>
       */
      INITIATE(2, 3),
      /**
       * <code>PROVIDE_REFUND = 4;</code>
       */
      PROVIDE_REFUND(3, 4),
      /**
       * <code>RETURN_REFUND = 5;</code>
       */
      RETURN_REFUND(4, 5),
      /**
       * <code>PROVIDE_CONTRACT = 6;</code>
       */
      PROVIDE_CONTRACT(5, 6),
      /**
       * <code>CHANNEL_OPEN = 7;</code>
       *
       * <pre>
       * Note that there are no optional fields set for CHANNEL_OPEN, it is sent from the
       * secondary to the primary to indicate that the provided contract was received,
       * verified, and broadcast successfully and the primary can now provide UPDATE messages
       * at will to begin paying secondary. If the channel is interrupted after the
       * CHANNEL_OPEN message (ie closed without an explicit CLOSE or ERROR) the primary may
       * reopen the channel by setting the contract transaction hash in its CLIENT_VERSION
       * message.
       * </pre>
       */
      CHANNEL_OPEN(6, 7),
      /**
       * <code>UPDATE_PAYMENT = 8;</code>
       */
      UPDATE_PAYMENT(7, 8),
      /**
       * <code>CLOSE = 9;</code>
       *
       * <pre>
       * Either side can send this message. If the client sends it to the server, then the server
       * takes the most recent signature it received in an UPDATE_PAYMENT and uses it to create a
       * valid transaction, which it then broadcasts on the network.
       *
       * If the server sends it to the client, then it can either be a simple "good bye" message or
       * it can include the fully signed close transaction and give it back so the client can
       * eventually broadcast it as well, in case the server fails to do so for some reason (and
       * more usefully so the client can build on it). In that case the server replies to a CLOSE
       * with another CLOSE and then disconnects.
       * </pre>
       */
      CLOSE(8, 9),
      /**
       * <code>ERROR = 10;</code>
       *
       * <pre>
       * Used to indicate an error condition.
       * Both parties should make an effort to send either an ERROR or a CLOSE immediately
       * before closing the socket (unless they just received an ERROR or a CLOSE). This is important
       * because the protocol may not run over TCP.
       * </pre>
       */
      ERROR(9, 10),
      ;

      /**
       * <code>CLIENT_VERSION = 1;</code>
       */
      public static final int CLIENT_VERSION_VALUE = 1;
      /**
       * <code>SERVER_VERSION = 2;</code>
       */
      public static final int SERVER_VERSION_VALUE = 2;
      /**
       * <code>INITIATE = 3;</code>
       */
      public static final int INITIATE_VALUE = 3;
      /**
       * <code>PROVIDE_REFUND = 4;</code>
       */
      public static final int PROVIDE_REFUND_VALUE = 4;
      /**
       * <code>RETURN_REFUND = 5;</code>
       */
      public static final int RETURN_REFUND_VALUE = 5;
      /**
       * <code>PROVIDE_CONTRACT = 6;</code>
       */
      public static final int PROVIDE_CONTRACT_VALUE = 6;
      /**
       * <code>CHANNEL_OPEN = 7;</code>
       *
       * <pre>
       * Note that there are no optional fields set for CHANNEL_OPEN, it is sent from the
       * secondary to the primary to indicate that the provided contract was received,
       * verified, and broadcast successfully and the primary can now provide UPDATE messages
       * at will to begin paying secondary. If the channel is interrupted after the
       * CHANNEL_OPEN message (ie closed without an explicit CLOSE or ERROR) the primary may
       * reopen the channel by setting the contract transaction hash in its CLIENT_VERSION
       * message.
       * </pre>
       */
      public static final int CHANNEL_OPEN_VALUE = 7;
      /**
       * <code>UPDATE_PAYMENT = 8;</code>
       */
      public static final int UPDATE_PAYMENT_VALUE = 8;
      /**
       * <code>CLOSE = 9;</code>
       *
       * <pre>
       * Either side can send this message. If the client sends it to the server, then the server
       * takes the most recent signature it received in an UPDATE_PAYMENT and uses it to create a
       * valid transaction, which it then broadcasts on the network.
       *
       * If the server sends it to the client, then it can either be a simple "good bye" message or
       * it can include the fully signed close transaction and give it back so the client can
       * eventually broadcast it as well, in case the server fails to do so for some reason (and
       * more usefully so the client can build on it). In that case the server replies to a CLOSE
       * with another CLOSE and then disconnects.
       * </pre>
       */
      public static final int CLOSE_VALUE = 9;
      /**
       * <code>ERROR = 10;</code>
       *
       * <pre>
       * Used to indicate an error condition.
       * Both parties should make an effort to send either an ERROR or a CLOSE immediately
       * before closing the socket (unless they just received an ERROR or a CLOSE). This is important
       * because the protocol may not run over TCP.
       * </pre>
       */
      public static final int ERROR_VALUE = 10;


      public final int getNumber() { return value; }

      public static MessageType valueOf(int value) {
        switch (value) {
          case 1: return CLIENT_VERSION;
          case 2: return SERVER_VERSION;
          case 3: return INITIATE;
          case 4: return PROVIDE_REFUND;
          case 5: return RETURN_REFUND;
          case 6: return PROVIDE_CONTRACT;
          case 7: return CHANNEL_OPEN;
          case 8: return UPDATE_PAYMENT;
          case 9: return CLOSE;
          case 10: return ERROR;
          default: return null;
        }
      }

      public static com.google.protobuf.Internal.EnumLiteMap<MessageType>
          internalGetValueMap() {
        return internalValueMap;
      }
      private static com.google.protobuf.Internal.EnumLiteMap<MessageType>
          internalValueMap =
            new com.google.protobuf.Internal.EnumLiteMap<MessageType>() {
              public MessageType findValueByNumber(int number) {
                return MessageType.valueOf(number);
              }
            };

      public final com.google.protobuf.Descriptors.EnumValueDescriptor
          getValueDescriptor() {
        return getDescriptor().getValues().get(index);
      }
      public final com.google.protobuf.Descriptors.EnumDescriptor
          getDescriptorForType() {
        return getDescriptor();
      }
      public static final com.google.protobuf.Descriptors.EnumDescriptor
          getDescriptor() {
        return org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.getDescriptor().getEnumTypes().get(0);
      }

      private static final MessageType[] VALUES = values();

      public static MessageType valueOf(
          com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
        if (desc.getType() != getDescriptor()) {
          throw new java.lang.IllegalArgumentException(
            "EnumValueDescriptor is not for this type.");
        }
        return VALUES[desc.getIndex()];
      }

      private final int index;
      private final int value;

      private MessageType(int index, int value) {
        this.index = index;
        this.value = value;
      }

      // @@protoc_insertion_point(enum_scope:paymentchannels.TwoWayChannelMessage.MessageType)
    }

    private int bitField0_;
    // required .paymentchannels.TwoWayChannelMessage.MessageType type = 1;
    public static final int TYPE_FIELD_NUMBER = 1;
    private org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.MessageType type_;
    /**
     * <code>required .paymentchannels.TwoWayChannelMessage.MessageType type = 1;</code>
     *
     * <pre>
     * This is required so if a new message type is added in future, old software aborts trying
     * to read the message as early as possible. If the message doesn't parse, the socket should
     * be closed.
     * </pre>
     */
    public boolean hasType() {
      return ((bitField0_ & 0x00000001) == 0x00000001);
    }
    /**
     * <code>required .paymentchannels.TwoWayChannelMessage.MessageType type = 1;</code>
     *
     * <pre>
     * This is required so if a new message type is added in future, old software aborts trying
     * to read the message as early as possible. If the message doesn't parse, the socket should
     * be closed.
     * </pre>
     */
    public org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.MessageType getType() {
      return type_;
    }

    // optional .paymentchannels.ClientVersion client_version = 2;
    public static final int CLIENT_VERSION_FIELD_NUMBER = 2;
    private org.bitcoin.paymentchannel.Protos.ClientVersion clientVersion_;
    /**
     * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
     *
     * <pre>
     * Now one optional field for each message. Only the field specified by type should be read.
     * </pre>
     */
    public boolean hasClientVersion() {
      return ((bitField0_ & 0x00000002) == 0x00000002);
    }
    /**
     * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
     *
     * <pre>
     * Now one optional field for each message. Only the field specified by type should be read.
     * </pre>
     */
    public org.bitcoin.paymentchannel.Protos.ClientVersion getClientVersion() {
      return clientVersion_;
    }
    /**
     * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
     *
     * <pre>
     * Now one optional field for each message. Only the field specified by type should be read.
     * </pre>
     */
    public org.bitcoin.paymentchannel.Protos.ClientVersionOrBuilder getClientVersionOrBuilder() {
      return clientVersion_;
    }

    // optional .paymentchannels.ServerVersion server_version = 3;
    public static final int SERVER_VERSION_FIELD_NUMBER = 3;
    private org.bitcoin.paymentchannel.Protos.ServerVersion serverVersion_;
    /**
     * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
     */
    public boolean hasServerVersion() {
      return ((bitField0_ & 0x00000004) == 0x00000004);
    }
    /**
     * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
     */
    public org.bitcoin.paymentchannel.Protos.ServerVersion getServerVersion() {
      return serverVersion_;
    }
    /**
     * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
     */
    public org.bitcoin.paymentchannel.Protos.ServerVersionOrBuilder getServerVersionOrBuilder() {
      return serverVersion_;
    }

    // optional .paymentchannels.Initiate initiate = 4;
    public static final int INITIATE_FIELD_NUMBER = 4;
    private org.bitcoin.paymentchannel.Protos.Initiate initiate_;
    /**
     * <code>optional .paymentchannels.Initiate initiate = 4;</code>
     */
    public boolean hasInitiate() {
      return ((bitField0_ & 0x00000008) == 0x00000008);
    }
    /**
     * <code>optional .paymentchannels.Initiate initiate = 4;</code>
     */
    public org.bitcoin.paymentchannel.Protos.Initiate getInitiate() {
      return initiate_;
    }
    /**
     * <code>optional .paymentchannels.Initiate initiate = 4;</code>
     */
    public org.bitcoin.paymentchannel.Protos.InitiateOrBuilder getInitiateOrBuilder() {
      return initiate_;
    }

    // optional .paymentchannels.ProvideRefund provide_refund = 5;
    public static final int PROVIDE_REFUND_FIELD_NUMBER = 5;
    private org.bitcoin.paymentchannel.Protos.ProvideRefund provideRefund_;
    /**
     * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
     */
    public boolean hasProvideRefund() {
      return ((bitField0_ & 0x00000010) == 0x00000010);
    }
    /**
     * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
     */
    public org.bitcoin.paymentchannel.Protos.ProvideRefund getProvideRefund() {
      return provideRefund_;
    }
    /**
     * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
     */
    public org.bitcoin.paymentchannel.Protos.ProvideRefundOrBuilder getProvideRefundOrBuilder() {
      return provideRefund_;
    }

    // optional .paymentchannels.ReturnRefund return_refund = 6;
    public static final int RETURN_REFUND_FIELD_NUMBER = 6;
    private org.bitcoin.paymentchannel.Protos.ReturnRefund returnRefund_;
    /**
     * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
     */
    public boolean hasReturnRefund() {
      return ((bitField0_ & 0x00000020) == 0x00000020);
    }
    /**
     * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
     */
    public org.bitcoin.paymentchannel.Protos.ReturnRefund getReturnRefund() {
      return returnRefund_;
    }
    /**
     * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
     */
    public org.bitcoin.paymentchannel.Protos.ReturnRefundOrBuilder getReturnRefundOrBuilder() {
      return returnRefund_;
    }

    // optional .paymentchannels.ProvideContract provide_contract = 7;
    public static final int PROVIDE_CONTRACT_FIELD_NUMBER = 7;
    private org.bitcoin.paymentchannel.Protos.ProvideContract provideContract_;
    /**
     * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
     */
    public boolean hasProvideContract() {
      return ((bitField0_ & 0x00000040) == 0x00000040);
    }
    /**
     * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
     */
    public org.bitcoin.paymentchannel.Protos.ProvideContract getProvideContract() {
      return provideContract_;
    }
    /**
     * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
     */
    public org.bitcoin.paymentchannel.Protos.ProvideContractOrBuilder getProvideContractOrBuilder() {
      return provideContract_;
    }

    // optional .paymentchannels.UpdatePayment update_payment = 8;
    public static final int UPDATE_PAYMENT_FIELD_NUMBER = 8;
    private org.bitcoin.paymentchannel.Protos.UpdatePayment updatePayment_;
    /**
     * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
     */
    public boolean hasUpdatePayment() {
      return ((bitField0_ & 0x00000080) == 0x00000080);
    }
    /**
     * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
     */
    public org.bitcoin.paymentchannel.Protos.UpdatePayment getUpdatePayment() {
      return updatePayment_;
    }
    /**
     * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
     */
    public org.bitcoin.paymentchannel.Protos.UpdatePaymentOrBuilder getUpdatePaymentOrBuilder() {
      return updatePayment_;
    }

    // optional .paymentchannels.Close close = 9;
    public static final int CLOSE_FIELD_NUMBER = 9;
    private org.bitcoin.paymentchannel.Protos.Close close_;
    /**
     * <code>optional .paymentchannels.Close close = 9;</code>
     */
    public boolean hasClose() {
      return ((bitField0_ & 0x00000100) == 0x00000100);
    }
    /**
     * <code>optional .paymentchannels.Close close = 9;</code>
     */
    public org.bitcoin.paymentchannel.Protos.Close getClose() {
      return close_;
    }
    /**
     * <code>optional .paymentchannels.Close close = 9;</code>
     */
    public org.bitcoin.paymentchannel.Protos.CloseOrBuilder getCloseOrBuilder() {
      return close_;
    }

    // optional .paymentchannels.Error error = 10;
    public static final int ERROR_FIELD_NUMBER = 10;
    private org.bitcoin.paymentchannel.Protos.Error error_;
    /**
     * <code>optional .paymentchannels.Error error = 10;</code>
     */
    public boolean hasError() {
      return ((bitField0_ & 0x00000200) == 0x00000200);
    }
    /**
     * <code>optional .paymentchannels.Error error = 10;</code>
     */
    public org.bitcoin.paymentchannel.Protos.Error getError() {
      return error_;
    }
    /**
     * <code>optional .paymentchannels.Error error = 10;</code>
     */
    public org.bitcoin.paymentchannel.Protos.ErrorOrBuilder getErrorOrBuilder() {
      return error_;
    }

    private void initFields() {
      type_ = org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.MessageType.CLIENT_VERSION;
      clientVersion_ = org.bitcoin.paymentchannel.Protos.ClientVersion.getDefaultInstance();
      serverVersion_ = org.bitcoin.paymentchannel.Protos.ServerVersion.getDefaultInstance();
      initiate_ = org.bitcoin.paymentchannel.Protos.Initiate.getDefaultInstance();
      provideRefund_ = org.bitcoin.paymentchannel.Protos.ProvideRefund.getDefaultInstance();
      returnRefund_ = org.bitcoin.paymentchannel.Protos.ReturnRefund.getDefaultInstance();
      provideContract_ = org.bitcoin.paymentchannel.Protos.ProvideContract.getDefaultInstance();
      updatePayment_ = org.bitcoin.paymentchannel.Protos.UpdatePayment.getDefaultInstance();
      close_ = org.bitcoin.paymentchannel.Protos.Close.getDefaultInstance();
      error_ = org.bitcoin.paymentchannel.Protos.Error.getDefaultInstance();
    }
    private byte memoizedIsInitialized = -1;
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized != -1) return isInitialized == 1;

      if (!hasType()) {
        memoizedIsInitialized = 0;
        return false;
      }
      if (hasClientVersion()) {
        if (!getClientVersion().isInitialized()) {
          memoizedIsInitialized = 0;
          return false;
        }
      }
      if (hasServerVersion()) {
        if (!getServerVersion().isInitialized()) {
          memoizedIsInitialized = 0;
          return false;
        }
      }
      if (hasInitiate()) {
        if (!getInitiate().isInitialized()) {
          memoizedIsInitialized = 0;
          return false;
        }
      }
      if (hasProvideRefund()) {
        if (!getProvideRefund().isInitialized()) {
          memoizedIsInitialized = 0;
          return false;
        }
      }
      if (hasReturnRefund()) {
        if (!getReturnRefund().isInitialized()) {
          memoizedIsInitialized = 0;
          return false;
        }
      }
      if (hasProvideContract()) {
        if (!getProvideContract().isInitialized()) {
          memoizedIsInitialized = 0;
          return false;
        }
      }
      if (hasUpdatePayment()) {
        if (!getUpdatePayment().isInitialized()) {
          memoizedIsInitialized = 0;
          return false;
        }
      }
      if (hasClose()) {
        if (!getClose().isInitialized()) {
          memoizedIsInitialized = 0;
          return false;
        }
      }
      memoizedIsInitialized = 1;
      return true;
    }

    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      getSerializedSize();
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        output.writeEnum(1, type_.getNumber());
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        output.writeMessage(2, clientVersion_);
      }
      if (((bitField0_ & 0x00000004) == 0x00000004)) {
        output.writeMessage(3, serverVersion_);
      }
      if (((bitField0_ & 0x00000008) == 0x00000008)) {
        output.writeMessage(4, initiate_);
      }
      if (((bitField0_ & 0x00000010) == 0x00000010)) {
        output.writeMessage(5, provideRefund_);
      }
      if (((bitField0_ & 0x00000020) == 0x00000020)) {
        output.writeMessage(6, returnRefund_);
      }
      if (((bitField0_ & 0x00000040) == 0x00000040)) {
        output.writeMessage(7, provideContract_);
      }
      if (((bitField0_ & 0x00000080) == 0x00000080)) {
        output.writeMessage(8, updatePayment_);
      }
      if (((bitField0_ & 0x00000100) == 0x00000100)) {
        output.writeMessage(9, close_);
      }
      if (((bitField0_ & 0x00000200) == 0x00000200)) {
        output.writeMessage(10, error_);
      }
      getUnknownFields().writeTo(output);
    }

    private int memoizedSerializedSize = -1;
    public int getSerializedSize() {
      int size = memoizedSerializedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        size += com.google.protobuf.CodedOutputStream
          .computeEnumSize(1, type_.getNumber());
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(2, clientVersion_);
      }
      if (((bitField0_ & 0x00000004) == 0x00000004)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(3, serverVersion_);
      }
      if (((bitField0_ & 0x00000008) == 0x00000008)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(4, initiate_);
      }
      if (((bitField0_ & 0x00000010) == 0x00000010)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(5, provideRefund_);
      }
      if (((bitField0_ & 0x00000020) == 0x00000020)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(6, returnRefund_);
      }
      if (((bitField0_ & 0x00000040) == 0x00000040)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(7, provideContract_);
      }
      if (((bitField0_ & 0x00000080) == 0x00000080)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(8, updatePayment_);
      }
      if (((bitField0_ & 0x00000100) == 0x00000100)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(9, close_);
      }
      if (((bitField0_ & 0x00000200) == 0x00000200)) {
        size += com.google.protobuf.CodedOutputStream
          .computeMessageSize(10, error_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSerializedSize = size;
      return size;
    }

    private static final long serialVersionUID = 0L;
    @java.lang.Override
    protected java.lang.Object writeReplace()
        throws java.io.ObjectStreamException {
      return super.writeReplace();
    }

    public static org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }

    public static Builder newBuilder() { return Builder.create(); }
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder(org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage prototype) {
      return newBuilder().mergeFrom(prototype);
    }
    public Builder toBuilder() { return newBuilder(this); }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * Protobuf type {@code paymentchannels.TwoWayChannelMessage}
     *
     * <pre>
     * This message is designed to be either sent raw over the network (e.g. length prefixed) or embedded inside another
     * protocol that is being extended to support micropayments. In this file "primary" typically can be read as "client"
     * and "secondary" as "server".
     * </pre>
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessage.Builder<Builder>
       implements org.bitcoin.paymentchannel.Protos.TwoWayChannelMessageOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_TwoWayChannelMessage_descriptor;
      }

      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_TwoWayChannelMessage_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.class, org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.Builder.class);
      }

      // Construct using org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.newBuilder()
      private Builder() {
        maybeForceBuilderInitialization();
      }

      private Builder(
          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
        super(parent);
        maybeForceBuilderInitialization();
      }
      private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
          getClientVersionFieldBuilder();
          getServerVersionFieldBuilder();
          getInitiateFieldBuilder();
          getProvideRefundFieldBuilder();
          getReturnRefundFieldBuilder();
          getProvideContractFieldBuilder();
          getUpdatePaymentFieldBuilder();
          getCloseFieldBuilder();
          getErrorFieldBuilder();
        }
      }
      private static Builder create() {
        return new Builder();
      }

      public Builder clear() {
        super.clear();
        type_ = org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.MessageType.CLIENT_VERSION;
        bitField0_ = (bitField0_ & ~0x00000001);
        if (clientVersionBuilder_ == null) {
          clientVersion_ = org.bitcoin.paymentchannel.Protos.ClientVersion.getDefaultInstance();
        } else {
          clientVersionBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000002);
        if (serverVersionBuilder_ == null) {
          serverVersion_ = org.bitcoin.paymentchannel.Protos.ServerVersion.getDefaultInstance();
        } else {
          serverVersionBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000004);
        if (initiateBuilder_ == null) {
          initiate_ = org.bitcoin.paymentchannel.Protos.Initiate.getDefaultInstance();
        } else {
          initiateBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000008);
        if (provideRefundBuilder_ == null) {
          provideRefund_ = org.bitcoin.paymentchannel.Protos.ProvideRefund.getDefaultInstance();
        } else {
          provideRefundBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000010);
        if (returnRefundBuilder_ == null) {
          returnRefund_ = org.bitcoin.paymentchannel.Protos.ReturnRefund.getDefaultInstance();
        } else {
          returnRefundBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000020);
        if (provideContractBuilder_ == null) {
          provideContract_ = org.bitcoin.paymentchannel.Protos.ProvideContract.getDefaultInstance();
        } else {
          provideContractBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000040);
        if (updatePaymentBuilder_ == null) {
          updatePayment_ = org.bitcoin.paymentchannel.Protos.UpdatePayment.getDefaultInstance();
        } else {
          updatePaymentBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000080);
        if (closeBuilder_ == null) {
          close_ = org.bitcoin.paymentchannel.Protos.Close.getDefaultInstance();
        } else {
          closeBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000100);
        if (errorBuilder_ == null) {
          error_ = org.bitcoin.paymentchannel.Protos.Error.getDefaultInstance();
        } else {
          errorBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000200);
        return this;
      }

      public Builder clone() {
        return create().mergeFrom(buildPartial());
      }

      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_TwoWayChannelMessage_descriptor;
      }

      public org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage getDefaultInstanceForType() {
        return org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.getDefaultInstance();
      }

      public org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage build() {
        org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      public org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage buildPartial() {
        org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage result = new org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage(this);
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
          to_bitField0_ |= 0x00000001;
        }
        result.type_ = type_;
        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
          to_bitField0_ |= 0x00000002;
        }
        if (clientVersionBuilder_ == null) {
          result.clientVersion_ = clientVersion_;
        } else {
          result.clientVersion_ = clientVersionBuilder_.build();
        }
        if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
          to_bitField0_ |= 0x00000004;
        }
        if (serverVersionBuilder_ == null) {
          result.serverVersion_ = serverVersion_;
        } else {
          result.serverVersion_ = serverVersionBuilder_.build();
        }
        if (((from_bitField0_ & 0x00000008) == 0x00000008)) {
          to_bitField0_ |= 0x00000008;
        }
        if (initiateBuilder_ == null) {
          result.initiate_ = initiate_;
        } else {
          result.initiate_ = initiateBuilder_.build();
        }
        if (((from_bitField0_ & 0x00000010) == 0x00000010)) {
          to_bitField0_ |= 0x00000010;
        }
        if (provideRefundBuilder_ == null) {
          result.provideRefund_ = provideRefund_;
        } else {
          result.provideRefund_ = provideRefundBuilder_.build();
        }
        if (((from_bitField0_ & 0x00000020) == 0x00000020)) {
          to_bitField0_ |= 0x00000020;
        }
        if (returnRefundBuilder_ == null) {
          result.returnRefund_ = returnRefund_;
        } else {
          result.returnRefund_ = returnRefundBuilder_.build();
        }
        if (((from_bitField0_ & 0x00000040) == 0x00000040)) {
          to_bitField0_ |= 0x00000040;
        }
        if (provideContractBuilder_ == null) {
          result.provideContract_ = provideContract_;
        } else {
          result.provideContract_ = provideContractBuilder_.build();
        }
        if (((from_bitField0_ & 0x00000080) == 0x00000080)) {
          to_bitField0_ |= 0x00000080;
        }
        if (updatePaymentBuilder_ == null) {
          result.updatePayment_ = updatePayment_;
        } else {
          result.updatePayment_ = updatePaymentBuilder_.build();
        }
        if (((from_bitField0_ & 0x00000100) == 0x00000100)) {
          to_bitField0_ |= 0x00000100;
        }
        if (closeBuilder_ == null) {
          result.close_ = close_;
        } else {
          result.close_ = closeBuilder_.build();
        }
        if (((from_bitField0_ & 0x00000200) == 0x00000200)) {
          to_bitField0_ |= 0x00000200;
        }
        if (errorBuilder_ == null) {
          result.error_ = error_;
        } else {
          result.error_ = errorBuilder_.build();
        }
        result.bitField0_ = to_bitField0_;
        onBuilt();
        return result;
      }

      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage) {
          return mergeFrom((org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage other) {
        if (other == org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.getDefaultInstance()) return this;
        if (other.hasType()) {
          setType(other.getType());
        }
        if (other.hasClientVersion()) {
          mergeClientVersion(other.getClientVersion());
        }
        if (other.hasServerVersion()) {
          mergeServerVersion(other.getServerVersion());
        }
        if (other.hasInitiate()) {
          mergeInitiate(other.getInitiate());
        }
        if (other.hasProvideRefund()) {
          mergeProvideRefund(other.getProvideRefund());
        }
        if (other.hasReturnRefund()) {
          mergeReturnRefund(other.getReturnRefund());
        }
        if (other.hasProvideContract()) {
          mergeProvideContract(other.getProvideContract());
        }
        if (other.hasUpdatePayment()) {
          mergeUpdatePayment(other.getUpdatePayment());
        }
        if (other.hasClose()) {
          mergeClose(other.getClose());
        }
        if (other.hasError()) {
          mergeError(other.getError());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        return this;
      }

      public final boolean isInitialized() {
        if (!hasType()) {
          
          return false;
        }
        if (hasClientVersion()) {
          if (!getClientVersion().isInitialized()) {
            
            return false;
          }
        }
        if (hasServerVersion()) {
          if (!getServerVersion().isInitialized()) {
            
            return false;
          }
        }
        if (hasInitiate()) {
          if (!getInitiate().isInitialized()) {
            
            return false;
          }
        }
        if (hasProvideRefund()) {
          if (!getProvideRefund().isInitialized()) {
            
            return false;
          }
        }
        if (hasReturnRefund()) {
          if (!getReturnRefund().isInitialized()) {
            
            return false;
          }
        }
        if (hasProvideContract()) {
          if (!getProvideContract().isInitialized()) {
            
            return false;
          }
        }
        if (hasUpdatePayment()) {
          if (!getUpdatePayment().isInitialized()) {
            
            return false;
          }
        }
        if (hasClose()) {
          if (!getClose().isInitialized()) {
            
            return false;
          }
        }
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage) e.getUnfinishedMessage();
          throw e;
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }
      private int bitField0_;

      // required .paymentchannels.TwoWayChannelMessage.MessageType type = 1;
      private org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.MessageType type_ = org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.MessageType.CLIENT_VERSION;
      /**
       * <code>required .paymentchannels.TwoWayChannelMessage.MessageType type = 1;</code>
       *
       * <pre>
       * This is required so if a new message type is added in future, old software aborts trying
       * to read the message as early as possible. If the message doesn't parse, the socket should
       * be closed.
       * </pre>
       */
      public boolean hasType() {
        return ((bitField0_ & 0x00000001) == 0x00000001);
      }
      /**
       * <code>required .paymentchannels.TwoWayChannelMessage.MessageType type = 1;</code>
       *
       * <pre>
       * This is required so if a new message type is added in future, old software aborts trying
       * to read the message as early as possible. If the message doesn't parse, the socket should
       * be closed.
       * </pre>
       */
      public org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.MessageType getType() {
        return type_;
      }
      /**
       * <code>required .paymentchannels.TwoWayChannelMessage.MessageType type = 1;</code>
       *
       * <pre>
       * This is required so if a new message type is added in future, old software aborts trying
       * to read the message as early as possible. If the message doesn't parse, the socket should
       * be closed.
       * </pre>
       */
      public Builder setType(org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.MessageType value) {
        if (value == null) {
          throw new NullPointerException();
        }
        bitField0_ |= 0x00000001;
        type_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required .paymentchannels.TwoWayChannelMessage.MessageType type = 1;</code>
       *
       * <pre>
       * This is required so if a new message type is added in future, old software aborts trying
       * to read the message as early as possible. If the message doesn't parse, the socket should
       * be closed.
       * </pre>
       */
      public Builder clearType() {
        bitField0_ = (bitField0_ & ~0x00000001);
        type_ = org.bitcoin.paymentchannel.Protos.TwoWayChannelMessage.MessageType.CLIENT_VERSION;
        onChanged();
        return this;
      }

      // optional .paymentchannels.ClientVersion client_version = 2;
      private org.bitcoin.paymentchannel.Protos.ClientVersion clientVersion_ = org.bitcoin.paymentchannel.Protos.ClientVersion.getDefaultInstance();
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.ClientVersion, org.bitcoin.paymentchannel.Protos.ClientVersion.Builder, org.bitcoin.paymentchannel.Protos.ClientVersionOrBuilder> clientVersionBuilder_;
      /**
       * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
       *
       * <pre>
       * Now one optional field for each message. Only the field specified by type should be read.
       * </pre>
       */
      public boolean hasClientVersion() {
        return ((bitField0_ & 0x00000002) == 0x00000002);
      }
      /**
       * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
       *
       * <pre>
       * Now one optional field for each message. Only the field specified by type should be read.
       * </pre>
       */
      public org.bitcoin.paymentchannel.Protos.ClientVersion getClientVersion() {
        if (clientVersionBuilder_ == null) {
          return clientVersion_;
        } else {
          return clientVersionBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
       *
       * <pre>
       * Now one optional field for each message. Only the field specified by type should be read.
       * </pre>
       */
      public Builder setClientVersion(org.bitcoin.paymentchannel.Protos.ClientVersion value) {
        if (clientVersionBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          clientVersion_ = value;
          onChanged();
        } else {
          clientVersionBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000002;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
       *
       * <pre>
       * Now one optional field for each message. Only the field specified by type should be read.
       * </pre>
       */
      public Builder setClientVersion(
          org.bitcoin.paymentchannel.Protos.ClientVersion.Builder builderForValue) {
        if (clientVersionBuilder_ == null) {
          clientVersion_ = builderForValue.build();
          onChanged();
        } else {
          clientVersionBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000002;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
       *
       * <pre>
       * Now one optional field for each message. Only the field specified by type should be read.
       * </pre>
       */
      public Builder mergeClientVersion(org.bitcoin.paymentchannel.Protos.ClientVersion value) {
        if (clientVersionBuilder_ == null) {
          if (((bitField0_ & 0x00000002) == 0x00000002) &&
              clientVersion_ != org.bitcoin.paymentchannel.Protos.ClientVersion.getDefaultInstance()) {
            clientVersion_ =
              org.bitcoin.paymentchannel.Protos.ClientVersion.newBuilder(clientVersion_).mergeFrom(value).buildPartial();
          } else {
            clientVersion_ = value;
          }
          onChanged();
        } else {
          clientVersionBuilder_.mergeFrom(value);
        }
        bitField0_ |= 0x00000002;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
       *
       * <pre>
       * Now one optional field for each message. Only the field specified by type should be read.
       * </pre>
       */
      public Builder clearClientVersion() {
        if (clientVersionBuilder_ == null) {
          clientVersion_ = org.bitcoin.paymentchannel.Protos.ClientVersion.getDefaultInstance();
          onChanged();
        } else {
          clientVersionBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000002);
        return this;
      }
      /**
       * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
       *
       * <pre>
       * Now one optional field for each message. Only the field specified by type should be read.
       * </pre>
       */
      public org.bitcoin.paymentchannel.Protos.ClientVersion.Builder getClientVersionBuilder() {
        bitField0_ |= 0x00000002;
        onChanged();
        return getClientVersionFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
       *
       * <pre>
       * Now one optional field for each message. Only the field specified by type should be read.
       * </pre>
       */
      public org.bitcoin.paymentchannel.Protos.ClientVersionOrBuilder getClientVersionOrBuilder() {
        if (clientVersionBuilder_ != null) {
          return clientVersionBuilder_.getMessageOrBuilder();
        } else {
          return clientVersion_;
        }
      }
      /**
       * <code>optional .paymentchannels.ClientVersion client_version = 2;</code>
       *
       * <pre>
       * Now one optional field for each message. Only the field specified by type should be read.
       * </pre>
       */
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.ClientVersion, org.bitcoin.paymentchannel.Protos.ClientVersion.Builder, org.bitcoin.paymentchannel.Protos.ClientVersionOrBuilder> 
          getClientVersionFieldBuilder() {
        if (clientVersionBuilder_ == null) {
          clientVersionBuilder_ = new com.google.protobuf.SingleFieldBuilder<
              org.bitcoin.paymentchannel.Protos.ClientVersion, org.bitcoin.paymentchannel.Protos.ClientVersion.Builder, org.bitcoin.paymentchannel.Protos.ClientVersionOrBuilder>(
                  clientVersion_,
                  getParentForChildren(),
                  isClean());
          clientVersion_ = null;
        }
        return clientVersionBuilder_;
      }

      // optional .paymentchannels.ServerVersion server_version = 3;
      private org.bitcoin.paymentchannel.Protos.ServerVersion serverVersion_ = org.bitcoin.paymentchannel.Protos.ServerVersion.getDefaultInstance();
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.ServerVersion, org.bitcoin.paymentchannel.Protos.ServerVersion.Builder, org.bitcoin.paymentchannel.Protos.ServerVersionOrBuilder> serverVersionBuilder_;
      /**
       * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
       */
      public boolean hasServerVersion() {
        return ((bitField0_ & 0x00000004) == 0x00000004);
      }
      /**
       * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ServerVersion getServerVersion() {
        if (serverVersionBuilder_ == null) {
          return serverVersion_;
        } else {
          return serverVersionBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
       */
      public Builder setServerVersion(org.bitcoin.paymentchannel.Protos.ServerVersion value) {
        if (serverVersionBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          serverVersion_ = value;
          onChanged();
        } else {
          serverVersionBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000004;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
       */
      public Builder setServerVersion(
          org.bitcoin.paymentchannel.Protos.ServerVersion.Builder builderForValue) {
        if (serverVersionBuilder_ == null) {
          serverVersion_ = builderForValue.build();
          onChanged();
        } else {
          serverVersionBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000004;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
       */
      public Builder mergeServerVersion(org.bitcoin.paymentchannel.Protos.ServerVersion value) {
        if (serverVersionBuilder_ == null) {
          if (((bitField0_ & 0x00000004) == 0x00000004) &&
              serverVersion_ != org.bitcoin.paymentchannel.Protos.ServerVersion.getDefaultInstance()) {
            serverVersion_ =
              org.bitcoin.paymentchannel.Protos.ServerVersion.newBuilder(serverVersion_).mergeFrom(value).buildPartial();
          } else {
            serverVersion_ = value;
          }
          onChanged();
        } else {
          serverVersionBuilder_.mergeFrom(value);
        }
        bitField0_ |= 0x00000004;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
       */
      public Builder clearServerVersion() {
        if (serverVersionBuilder_ == null) {
          serverVersion_ = org.bitcoin.paymentchannel.Protos.ServerVersion.getDefaultInstance();
          onChanged();
        } else {
          serverVersionBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000004);
        return this;
      }
      /**
       * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ServerVersion.Builder getServerVersionBuilder() {
        bitField0_ |= 0x00000004;
        onChanged();
        return getServerVersionFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ServerVersionOrBuilder getServerVersionOrBuilder() {
        if (serverVersionBuilder_ != null) {
          return serverVersionBuilder_.getMessageOrBuilder();
        } else {
          return serverVersion_;
        }
      }
      /**
       * <code>optional .paymentchannels.ServerVersion server_version = 3;</code>
       */
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.ServerVersion, org.bitcoin.paymentchannel.Protos.ServerVersion.Builder, org.bitcoin.paymentchannel.Protos.ServerVersionOrBuilder> 
          getServerVersionFieldBuilder() {
        if (serverVersionBuilder_ == null) {
          serverVersionBuilder_ = new com.google.protobuf.SingleFieldBuilder<
              org.bitcoin.paymentchannel.Protos.ServerVersion, org.bitcoin.paymentchannel.Protos.ServerVersion.Builder, org.bitcoin.paymentchannel.Protos.ServerVersionOrBuilder>(
                  serverVersion_,
                  getParentForChildren(),
                  isClean());
          serverVersion_ = null;
        }
        return serverVersionBuilder_;
      }

      // optional .paymentchannels.Initiate initiate = 4;
      private org.bitcoin.paymentchannel.Protos.Initiate initiate_ = org.bitcoin.paymentchannel.Protos.Initiate.getDefaultInstance();
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.Initiate, org.bitcoin.paymentchannel.Protos.Initiate.Builder, org.bitcoin.paymentchannel.Protos.InitiateOrBuilder> initiateBuilder_;
      /**
       * <code>optional .paymentchannels.Initiate initiate = 4;</code>
       */
      public boolean hasInitiate() {
        return ((bitField0_ & 0x00000008) == 0x00000008);
      }
      /**
       * <code>optional .paymentchannels.Initiate initiate = 4;</code>
       */
      public org.bitcoin.paymentchannel.Protos.Initiate getInitiate() {
        if (initiateBuilder_ == null) {
          return initiate_;
        } else {
          return initiateBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .paymentchannels.Initiate initiate = 4;</code>
       */
      public Builder setInitiate(org.bitcoin.paymentchannel.Protos.Initiate value) {
        if (initiateBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          initiate_ = value;
          onChanged();
        } else {
          initiateBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000008;
        return this;
      }
      /**
       * <code>optional .paymentchannels.Initiate initiate = 4;</code>
       */
      public Builder setInitiate(
          org.bitcoin.paymentchannel.Protos.Initiate.Builder builderForValue) {
        if (initiateBuilder_ == null) {
          initiate_ = builderForValue.build();
          onChanged();
        } else {
          initiateBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000008;
        return this;
      }
      /**
       * <code>optional .paymentchannels.Initiate initiate = 4;</code>
       */
      public Builder mergeInitiate(org.bitcoin.paymentchannel.Protos.Initiate value) {
        if (initiateBuilder_ == null) {
          if (((bitField0_ & 0x00000008) == 0x00000008) &&
              initiate_ != org.bitcoin.paymentchannel.Protos.Initiate.getDefaultInstance()) {
            initiate_ =
              org.bitcoin.paymentchannel.Protos.Initiate.newBuilder(initiate_).mergeFrom(value).buildPartial();
          } else {
            initiate_ = value;
          }
          onChanged();
        } else {
          initiateBuilder_.mergeFrom(value);
        }
        bitField0_ |= 0x00000008;
        return this;
      }
      /**
       * <code>optional .paymentchannels.Initiate initiate = 4;</code>
       */
      public Builder clearInitiate() {
        if (initiateBuilder_ == null) {
          initiate_ = org.bitcoin.paymentchannel.Protos.Initiate.getDefaultInstance();
          onChanged();
        } else {
          initiateBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000008);
        return this;
      }
      /**
       * <code>optional .paymentchannels.Initiate initiate = 4;</code>
       */
      public org.bitcoin.paymentchannel.Protos.Initiate.Builder getInitiateBuilder() {
        bitField0_ |= 0x00000008;
        onChanged();
        return getInitiateFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .paymentchannels.Initiate initiate = 4;</code>
       */
      public org.bitcoin.paymentchannel.Protos.InitiateOrBuilder getInitiateOrBuilder() {
        if (initiateBuilder_ != null) {
          return initiateBuilder_.getMessageOrBuilder();
        } else {
          return initiate_;
        }
      }
      /**
       * <code>optional .paymentchannels.Initiate initiate = 4;</code>
       */
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.Initiate, org.bitcoin.paymentchannel.Protos.Initiate.Builder, org.bitcoin.paymentchannel.Protos.InitiateOrBuilder> 
          getInitiateFieldBuilder() {
        if (initiateBuilder_ == null) {
          initiateBuilder_ = new com.google.protobuf.SingleFieldBuilder<
              org.bitcoin.paymentchannel.Protos.Initiate, org.bitcoin.paymentchannel.Protos.Initiate.Builder, org.bitcoin.paymentchannel.Protos.InitiateOrBuilder>(
                  initiate_,
                  getParentForChildren(),
                  isClean());
          initiate_ = null;
        }
        return initiateBuilder_;
      }

      // optional .paymentchannels.ProvideRefund provide_refund = 5;
      private org.bitcoin.paymentchannel.Protos.ProvideRefund provideRefund_ = org.bitcoin.paymentchannel.Protos.ProvideRefund.getDefaultInstance();
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.ProvideRefund, org.bitcoin.paymentchannel.Protos.ProvideRefund.Builder, org.bitcoin.paymentchannel.Protos.ProvideRefundOrBuilder> provideRefundBuilder_;
      /**
       * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
       */
      public boolean hasProvideRefund() {
        return ((bitField0_ & 0x00000010) == 0x00000010);
      }
      /**
       * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ProvideRefund getProvideRefund() {
        if (provideRefundBuilder_ == null) {
          return provideRefund_;
        } else {
          return provideRefundBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
       */
      public Builder setProvideRefund(org.bitcoin.paymentchannel.Protos.ProvideRefund value) {
        if (provideRefundBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          provideRefund_ = value;
          onChanged();
        } else {
          provideRefundBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000010;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
       */
      public Builder setProvideRefund(
          org.bitcoin.paymentchannel.Protos.ProvideRefund.Builder builderForValue) {
        if (provideRefundBuilder_ == null) {
          provideRefund_ = builderForValue.build();
          onChanged();
        } else {
          provideRefundBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000010;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
       */
      public Builder mergeProvideRefund(org.bitcoin.paymentchannel.Protos.ProvideRefund value) {
        if (provideRefundBuilder_ == null) {
          if (((bitField0_ & 0x00000010) == 0x00000010) &&
              provideRefund_ != org.bitcoin.paymentchannel.Protos.ProvideRefund.getDefaultInstance()) {
            provideRefund_ =
              org.bitcoin.paymentchannel.Protos.ProvideRefund.newBuilder(provideRefund_).mergeFrom(value).buildPartial();
          } else {
            provideRefund_ = value;
          }
          onChanged();
        } else {
          provideRefundBuilder_.mergeFrom(value);
        }
        bitField0_ |= 0x00000010;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
       */
      public Builder clearProvideRefund() {
        if (provideRefundBuilder_ == null) {
          provideRefund_ = org.bitcoin.paymentchannel.Protos.ProvideRefund.getDefaultInstance();
          onChanged();
        } else {
          provideRefundBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000010);
        return this;
      }
      /**
       * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ProvideRefund.Builder getProvideRefundBuilder() {
        bitField0_ |= 0x00000010;
        onChanged();
        return getProvideRefundFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ProvideRefundOrBuilder getProvideRefundOrBuilder() {
        if (provideRefundBuilder_ != null) {
          return provideRefundBuilder_.getMessageOrBuilder();
        } else {
          return provideRefund_;
        }
      }
      /**
       * <code>optional .paymentchannels.ProvideRefund provide_refund = 5;</code>
       */
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.ProvideRefund, org.bitcoin.paymentchannel.Protos.ProvideRefund.Builder, org.bitcoin.paymentchannel.Protos.ProvideRefundOrBuilder> 
          getProvideRefundFieldBuilder() {
        if (provideRefundBuilder_ == null) {
          provideRefundBuilder_ = new com.google.protobuf.SingleFieldBuilder<
              org.bitcoin.paymentchannel.Protos.ProvideRefund, org.bitcoin.paymentchannel.Protos.ProvideRefund.Builder, org.bitcoin.paymentchannel.Protos.ProvideRefundOrBuilder>(
                  provideRefund_,
                  getParentForChildren(),
                  isClean());
          provideRefund_ = null;
        }
        return provideRefundBuilder_;
      }

      // optional .paymentchannels.ReturnRefund return_refund = 6;
      private org.bitcoin.paymentchannel.Protos.ReturnRefund returnRefund_ = org.bitcoin.paymentchannel.Protos.ReturnRefund.getDefaultInstance();
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.ReturnRefund, org.bitcoin.paymentchannel.Protos.ReturnRefund.Builder, org.bitcoin.paymentchannel.Protos.ReturnRefundOrBuilder> returnRefundBuilder_;
      /**
       * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
       */
      public boolean hasReturnRefund() {
        return ((bitField0_ & 0x00000020) == 0x00000020);
      }
      /**
       * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ReturnRefund getReturnRefund() {
        if (returnRefundBuilder_ == null) {
          return returnRefund_;
        } else {
          return returnRefundBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
       */
      public Builder setReturnRefund(org.bitcoin.paymentchannel.Protos.ReturnRefund value) {
        if (returnRefundBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          returnRefund_ = value;
          onChanged();
        } else {
          returnRefundBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000020;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
       */
      public Builder setReturnRefund(
          org.bitcoin.paymentchannel.Protos.ReturnRefund.Builder builderForValue) {
        if (returnRefundBuilder_ == null) {
          returnRefund_ = builderForValue.build();
          onChanged();
        } else {
          returnRefundBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000020;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
       */
      public Builder mergeReturnRefund(org.bitcoin.paymentchannel.Protos.ReturnRefund value) {
        if (returnRefundBuilder_ == null) {
          if (((bitField0_ & 0x00000020) == 0x00000020) &&
              returnRefund_ != org.bitcoin.paymentchannel.Protos.ReturnRefund.getDefaultInstance()) {
            returnRefund_ =
              org.bitcoin.paymentchannel.Protos.ReturnRefund.newBuilder(returnRefund_).mergeFrom(value).buildPartial();
          } else {
            returnRefund_ = value;
          }
          onChanged();
        } else {
          returnRefundBuilder_.mergeFrom(value);
        }
        bitField0_ |= 0x00000020;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
       */
      public Builder clearReturnRefund() {
        if (returnRefundBuilder_ == null) {
          returnRefund_ = org.bitcoin.paymentchannel.Protos.ReturnRefund.getDefaultInstance();
          onChanged();
        } else {
          returnRefundBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000020);
        return this;
      }
      /**
       * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ReturnRefund.Builder getReturnRefundBuilder() {
        bitField0_ |= 0x00000020;
        onChanged();
        return getReturnRefundFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ReturnRefundOrBuilder getReturnRefundOrBuilder() {
        if (returnRefundBuilder_ != null) {
          return returnRefundBuilder_.getMessageOrBuilder();
        } else {
          return returnRefund_;
        }
      }
      /**
       * <code>optional .paymentchannels.ReturnRefund return_refund = 6;</code>
       */
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.ReturnRefund, org.bitcoin.paymentchannel.Protos.ReturnRefund.Builder, org.bitcoin.paymentchannel.Protos.ReturnRefundOrBuilder> 
          getReturnRefundFieldBuilder() {
        if (returnRefundBuilder_ == null) {
          returnRefundBuilder_ = new com.google.protobuf.SingleFieldBuilder<
              org.bitcoin.paymentchannel.Protos.ReturnRefund, org.bitcoin.paymentchannel.Protos.ReturnRefund.Builder, org.bitcoin.paymentchannel.Protos.ReturnRefundOrBuilder>(
                  returnRefund_,
                  getParentForChildren(),
                  isClean());
          returnRefund_ = null;
        }
        return returnRefundBuilder_;
      }

      // optional .paymentchannels.ProvideContract provide_contract = 7;
      private org.bitcoin.paymentchannel.Protos.ProvideContract provideContract_ = org.bitcoin.paymentchannel.Protos.ProvideContract.getDefaultInstance();
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.ProvideContract, org.bitcoin.paymentchannel.Protos.ProvideContract.Builder, org.bitcoin.paymentchannel.Protos.ProvideContractOrBuilder> provideContractBuilder_;
      /**
       * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
       */
      public boolean hasProvideContract() {
        return ((bitField0_ & 0x00000040) == 0x00000040);
      }
      /**
       * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ProvideContract getProvideContract() {
        if (provideContractBuilder_ == null) {
          return provideContract_;
        } else {
          return provideContractBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
       */
      public Builder setProvideContract(org.bitcoin.paymentchannel.Protos.ProvideContract value) {
        if (provideContractBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          provideContract_ = value;
          onChanged();
        } else {
          provideContractBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000040;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
       */
      public Builder setProvideContract(
          org.bitcoin.paymentchannel.Protos.ProvideContract.Builder builderForValue) {
        if (provideContractBuilder_ == null) {
          provideContract_ = builderForValue.build();
          onChanged();
        } else {
          provideContractBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000040;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
       */
      public Builder mergeProvideContract(org.bitcoin.paymentchannel.Protos.ProvideContract value) {
        if (provideContractBuilder_ == null) {
          if (((bitField0_ & 0x00000040) == 0x00000040) &&
              provideContract_ != org.bitcoin.paymentchannel.Protos.ProvideContract.getDefaultInstance()) {
            provideContract_ =
              org.bitcoin.paymentchannel.Protos.ProvideContract.newBuilder(provideContract_).mergeFrom(value).buildPartial();
          } else {
            provideContract_ = value;
          }
          onChanged();
        } else {
          provideContractBuilder_.mergeFrom(value);
        }
        bitField0_ |= 0x00000040;
        return this;
      }
      /**
       * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
       */
      public Builder clearProvideContract() {
        if (provideContractBuilder_ == null) {
          provideContract_ = org.bitcoin.paymentchannel.Protos.ProvideContract.getDefaultInstance();
          onChanged();
        } else {
          provideContractBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000040);
        return this;
      }
      /**
       * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ProvideContract.Builder getProvideContractBuilder() {
        bitField0_ |= 0x00000040;
        onChanged();
        return getProvideContractFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ProvideContractOrBuilder getProvideContractOrBuilder() {
        if (provideContractBuilder_ != null) {
          return provideContractBuilder_.getMessageOrBuilder();
        } else {
          return provideContract_;
        }
      }
      /**
       * <code>optional .paymentchannels.ProvideContract provide_contract = 7;</code>
       */
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.ProvideContract, org.bitcoin.paymentchannel.Protos.ProvideContract.Builder, org.bitcoin.paymentchannel.Protos.ProvideContractOrBuilder> 
          getProvideContractFieldBuilder() {
        if (provideContractBuilder_ == null) {
          provideContractBuilder_ = new com.google.protobuf.SingleFieldBuilder<
              org.bitcoin.paymentchannel.Protos.ProvideContract, org.bitcoin.paymentchannel.Protos.ProvideContract.Builder, org.bitcoin.paymentchannel.Protos.ProvideContractOrBuilder>(
                  provideContract_,
                  getParentForChildren(),
                  isClean());
          provideContract_ = null;
        }
        return provideContractBuilder_;
      }

      // optional .paymentchannels.UpdatePayment update_payment = 8;
      private org.bitcoin.paymentchannel.Protos.UpdatePayment updatePayment_ = org.bitcoin.paymentchannel.Protos.UpdatePayment.getDefaultInstance();
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.UpdatePayment, org.bitcoin.paymentchannel.Protos.UpdatePayment.Builder, org.bitcoin.paymentchannel.Protos.UpdatePaymentOrBuilder> updatePaymentBuilder_;
      /**
       * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
       */
      public boolean hasUpdatePayment() {
        return ((bitField0_ & 0x00000080) == 0x00000080);
      }
      /**
       * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
       */
      public org.bitcoin.paymentchannel.Protos.UpdatePayment getUpdatePayment() {
        if (updatePaymentBuilder_ == null) {
          return updatePayment_;
        } else {
          return updatePaymentBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
       */
      public Builder setUpdatePayment(org.bitcoin.paymentchannel.Protos.UpdatePayment value) {
        if (updatePaymentBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          updatePayment_ = value;
          onChanged();
        } else {
          updatePaymentBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000080;
        return this;
      }
      /**
       * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
       */
      public Builder setUpdatePayment(
          org.bitcoin.paymentchannel.Protos.UpdatePayment.Builder builderForValue) {
        if (updatePaymentBuilder_ == null) {
          updatePayment_ = builderForValue.build();
          onChanged();
        } else {
          updatePaymentBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000080;
        return this;
      }
      /**
       * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
       */
      public Builder mergeUpdatePayment(org.bitcoin.paymentchannel.Protos.UpdatePayment value) {
        if (updatePaymentBuilder_ == null) {
          if (((bitField0_ & 0x00000080) == 0x00000080) &&
              updatePayment_ != org.bitcoin.paymentchannel.Protos.UpdatePayment.getDefaultInstance()) {
            updatePayment_ =
              org.bitcoin.paymentchannel.Protos.UpdatePayment.newBuilder(updatePayment_).mergeFrom(value).buildPartial();
          } else {
            updatePayment_ = value;
          }
          onChanged();
        } else {
          updatePaymentBuilder_.mergeFrom(value);
        }
        bitField0_ |= 0x00000080;
        return this;
      }
      /**
       * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
       */
      public Builder clearUpdatePayment() {
        if (updatePaymentBuilder_ == null) {
          updatePayment_ = org.bitcoin.paymentchannel.Protos.UpdatePayment.getDefaultInstance();
          onChanged();
        } else {
          updatePaymentBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000080);
        return this;
      }
      /**
       * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
       */
      public org.bitcoin.paymentchannel.Protos.UpdatePayment.Builder getUpdatePaymentBuilder() {
        bitField0_ |= 0x00000080;
        onChanged();
        return getUpdatePaymentFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
       */
      public org.bitcoin.paymentchannel.Protos.UpdatePaymentOrBuilder getUpdatePaymentOrBuilder() {
        if (updatePaymentBuilder_ != null) {
          return updatePaymentBuilder_.getMessageOrBuilder();
        } else {
          return updatePayment_;
        }
      }
      /**
       * <code>optional .paymentchannels.UpdatePayment update_payment = 8;</code>
       */
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.UpdatePayment, org.bitcoin.paymentchannel.Protos.UpdatePayment.Builder, org.bitcoin.paymentchannel.Protos.UpdatePaymentOrBuilder> 
          getUpdatePaymentFieldBuilder() {
        if (updatePaymentBuilder_ == null) {
          updatePaymentBuilder_ = new com.google.protobuf.SingleFieldBuilder<
              org.bitcoin.paymentchannel.Protos.UpdatePayment, org.bitcoin.paymentchannel.Protos.UpdatePayment.Builder, org.bitcoin.paymentchannel.Protos.UpdatePaymentOrBuilder>(
                  updatePayment_,
                  getParentForChildren(),
                  isClean());
          updatePayment_ = null;
        }
        return updatePaymentBuilder_;
      }

      // optional .paymentchannels.Close close = 9;
      private org.bitcoin.paymentchannel.Protos.Close close_ = org.bitcoin.paymentchannel.Protos.Close.getDefaultInstance();
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.Close, org.bitcoin.paymentchannel.Protos.Close.Builder, org.bitcoin.paymentchannel.Protos.CloseOrBuilder> closeBuilder_;
      /**
       * <code>optional .paymentchannels.Close close = 9;</code>
       */
      public boolean hasClose() {
        return ((bitField0_ & 0x00000100) == 0x00000100);
      }
      /**
       * <code>optional .paymentchannels.Close close = 9;</code>
       */
      public org.bitcoin.paymentchannel.Protos.Close getClose() {
        if (closeBuilder_ == null) {
          return close_;
        } else {
          return closeBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .paymentchannels.Close close = 9;</code>
       */
      public Builder setClose(org.bitcoin.paymentchannel.Protos.Close value) {
        if (closeBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          close_ = value;
          onChanged();
        } else {
          closeBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000100;
        return this;
      }
      /**
       * <code>optional .paymentchannels.Close close = 9;</code>
       */
      public Builder setClose(
          org.bitcoin.paymentchannel.Protos.Close.Builder builderForValue) {
        if (closeBuilder_ == null) {
          close_ = builderForValue.build();
          onChanged();
        } else {
          closeBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000100;
        return this;
      }
      /**
       * <code>optional .paymentchannels.Close close = 9;</code>
       */
      public Builder mergeClose(org.bitcoin.paymentchannel.Protos.Close value) {
        if (closeBuilder_ == null) {
          if (((bitField0_ & 0x00000100) == 0x00000100) &&
              close_ != org.bitcoin.paymentchannel.Protos.Close.getDefaultInstance()) {
            close_ =
              org.bitcoin.paymentchannel.Protos.Close.newBuilder(close_).mergeFrom(value).buildPartial();
          } else {
            close_ = value;
          }
          onChanged();
        } else {
          closeBuilder_.mergeFrom(value);
        }
        bitField0_ |= 0x00000100;
        return this;
      }
      /**
       * <code>optional .paymentchannels.Close close = 9;</code>
       */
      public Builder clearClose() {
        if (closeBuilder_ == null) {
          close_ = org.bitcoin.paymentchannel.Protos.Close.getDefaultInstance();
          onChanged();
        } else {
          closeBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000100);
        return this;
      }
      /**
       * <code>optional .paymentchannels.Close close = 9;</code>
       */
      public org.bitcoin.paymentchannel.Protos.Close.Builder getCloseBuilder() {
        bitField0_ |= 0x00000100;
        onChanged();
        return getCloseFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .paymentchannels.Close close = 9;</code>
       */
      public org.bitcoin.paymentchannel.Protos.CloseOrBuilder getCloseOrBuilder() {
        if (closeBuilder_ != null) {
          return closeBuilder_.getMessageOrBuilder();
        } else {
          return close_;
        }
      }
      /**
       * <code>optional .paymentchannels.Close close = 9;</code>
       */
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.Close, org.bitcoin.paymentchannel.Protos.Close.Builder, org.bitcoin.paymentchannel.Protos.CloseOrBuilder> 
          getCloseFieldBuilder() {
        if (closeBuilder_ == null) {
          closeBuilder_ = new com.google.protobuf.SingleFieldBuilder<
              org.bitcoin.paymentchannel.Protos.Close, org.bitcoin.paymentchannel.Protos.Close.Builder, org.bitcoin.paymentchannel.Protos.CloseOrBuilder>(
                  close_,
                  getParentForChildren(),
                  isClean());
          close_ = null;
        }
        return closeBuilder_;
      }

      // optional .paymentchannels.Error error = 10;
      private org.bitcoin.paymentchannel.Protos.Error error_ = org.bitcoin.paymentchannel.Protos.Error.getDefaultInstance();
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.Error, org.bitcoin.paymentchannel.Protos.Error.Builder, org.bitcoin.paymentchannel.Protos.ErrorOrBuilder> errorBuilder_;
      /**
       * <code>optional .paymentchannels.Error error = 10;</code>
       */
      public boolean hasError() {
        return ((bitField0_ & 0x00000200) == 0x00000200);
      }
      /**
       * <code>optional .paymentchannels.Error error = 10;</code>
       */
      public org.bitcoin.paymentchannel.Protos.Error getError() {
        if (errorBuilder_ == null) {
          return error_;
        } else {
          return errorBuilder_.getMessage();
        }
      }
      /**
       * <code>optional .paymentchannels.Error error = 10;</code>
       */
      public Builder setError(org.bitcoin.paymentchannel.Protos.Error value) {
        if (errorBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          error_ = value;
          onChanged();
        } else {
          errorBuilder_.setMessage(value);
        }
        bitField0_ |= 0x00000200;
        return this;
      }
      /**
       * <code>optional .paymentchannels.Error error = 10;</code>
       */
      public Builder setError(
          org.bitcoin.paymentchannel.Protos.Error.Builder builderForValue) {
        if (errorBuilder_ == null) {
          error_ = builderForValue.build();
          onChanged();
        } else {
          errorBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00000200;
        return this;
      }
      /**
       * <code>optional .paymentchannels.Error error = 10;</code>
       */
      public Builder mergeError(org.bitcoin.paymentchannel.Protos.Error value) {
        if (errorBuilder_ == null) {
          if (((bitField0_ & 0x00000200) == 0x00000200) &&
              error_ != org.bitcoin.paymentchannel.Protos.Error.getDefaultInstance()) {
            error_ =
              org.bitcoin.paymentchannel.Protos.Error.newBuilder(error_).mergeFrom(value).buildPartial();
          } else {
            error_ = value;
          }
          onChanged();
        } else {
          errorBuilder_.mergeFrom(value);
        }
        bitField0_ |= 0x00000200;
        return this;
      }
      /**
       * <code>optional .paymentchannels.Error error = 10;</code>
       */
      public Builder clearError() {
        if (errorBuilder_ == null) {
          error_ = org.bitcoin.paymentchannel.Protos.Error.getDefaultInstance();
          onChanged();
        } else {
          errorBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000200);
        return this;
      }
      /**
       * <code>optional .paymentchannels.Error error = 10;</code>
       */
      public org.bitcoin.paymentchannel.Protos.Error.Builder getErrorBuilder() {
        bitField0_ |= 0x00000200;
        onChanged();
        return getErrorFieldBuilder().getBuilder();
      }
      /**
       * <code>optional .paymentchannels.Error error = 10;</code>
       */
      public org.bitcoin.paymentchannel.Protos.ErrorOrBuilder getErrorOrBuilder() {
        if (errorBuilder_ != null) {
          return errorBuilder_.getMessageOrBuilder();
        } else {
          return error_;
        }
      }
      /**
       * <code>optional .paymentchannels.Error error = 10;</code>
       */
      private com.google.protobuf.SingleFieldBuilder<
          org.bitcoin.paymentchannel.Protos.Error, org.bitcoin.paymentchannel.Protos.Error.Builder, org.bitcoin.paymentchannel.Protos.ErrorOrBuilder> 
          getErrorFieldBuilder() {
        if (errorBuilder_ == null) {
          errorBuilder_ = new com.google.protobuf.SingleFieldBuilder<
              org.bitcoin.paymentchannel.Protos.Error, org.bitcoin.paymentchannel.Protos.Error.Builder, org.bitcoin.paymentchannel.Protos.ErrorOrBuilder>(
                  error_,
                  getParentForChildren(),
                  isClean());
          error_ = null;
        }
        return errorBuilder_;
      }

      // @@protoc_insertion_point(builder_scope:paymentchannels.TwoWayChannelMessage)
    }

    static {
      defaultInstance = new TwoWayChannelMessage(true);
      defaultInstance.initFields();
    }

    // @@protoc_insertion_point(class_scope:paymentchannels.TwoWayChannelMessage)
  }

  public interface ClientVersionOrBuilder
      extends com.google.protobuf.MessageOrBuilder {

    // required int32 major = 1;
    /**
     * <code>required int32 major = 1;</code>
     */
    boolean hasMajor();
    /**
     * <code>required int32 major = 1;</code>
     */
    int getMajor();

    // optional int32 minor = 2 [default = 0];
    /**
     * <code>optional int32 minor = 2 [default = 0];</code>
     */
    boolean hasMinor();
    /**
     * <code>optional int32 minor = 2 [default = 0];</code>
     */
    int getMinor();

    // optional bytes previous_channel_contract_hash = 3;
    /**
     * <code>optional bytes previous_channel_contract_hash = 3;</code>
     *
     * <pre>
     * The hash of the multisig contract of a previous channel. This indicates that the primary
     * wishes to reopen the given channel. If the server is willing to reopen it, it simply
     * responds with a SERVER_VERSION and then immediately sends a CHANNEL_OPEN, it otherwise
     * follows SERVER_VERSION with an Initiate representing a new channel
     * </pre>
     */
    boolean hasPreviousChannelContractHash();
    /**
     * <code>optional bytes previous_channel_contract_hash = 3;</code>
     *
     * <pre>
     * The hash of the multisig contract of a previous channel. This indicates that the primary
     * wishes to reopen the given channel. If the server is willing to reopen it, it simply
     * responds with a SERVER_VERSION and then immediately sends a CHANNEL_OPEN, it otherwise
     * follows SERVER_VERSION with an Initiate representing a new channel
     * </pre>
     */
    com.google.protobuf.ByteString getPreviousChannelContractHash();
  }
  /**
   * Protobuf type {@code paymentchannels.ClientVersion}
   *
   * <pre>
   * Sent by primary to secondary on opening the connection. If anything is received before this is
   * sent, the socket is closed.
   * </pre>
   */
  public static final class ClientVersion extends
      com.google.protobuf.GeneratedMessage
      implements ClientVersionOrBuilder {
    // Use ClientVersion.newBuilder() to construct.
    private ClientVersion(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
      super(builder);
      this.unknownFields = builder.getUnknownFields();
    }
    private ClientVersion(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }

    private static final ClientVersion defaultInstance;
    public static ClientVersion getDefaultInstance() {
      return defaultInstance;
    }

    public ClientVersion getDefaultInstanceForType() {
      return defaultInstance;
    }

    private final com.google.protobuf.UnknownFieldSet unknownFields;
    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
        getUnknownFields() {
      return this.unknownFields;
    }
    private ClientVersion(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      initFields();
      int mutable_bitField0_ = 0;
      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
          com.google.protobuf.UnknownFieldSet.newBuilder();
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!parseUnknownField(input, unknownFields,
                                     extensionRegistry, tag)) {
                done = true;
              }
              break;
            }
            case 8: {
              bitField0_ |= 0x00000001;
              major_ = input.readInt32();
              break;
            }
            case 16: {
              bitField0_ |= 0x00000002;
              minor_ = input.readInt32();
              break;
            }
            case 26: {
              bitField0_ |= 0x00000004;
              previousChannelContractHash_ = input.readBytes();
              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e.getMessage()).setUnfinishedMessage(this);
      } finally {
        this.unknownFields = unknownFields.build();
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ClientVersion_descriptor;
    }

    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ClientVersion_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.bitcoin.paymentchannel.Protos.ClientVersion.class, org.bitcoin.paymentchannel.Protos.ClientVersion.Builder.class);
    }

    public static com.google.protobuf.Parser<ClientVersion> PARSER =
        new com.google.protobuf.AbstractParser<ClientVersion>() {
      public ClientVersion parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return new ClientVersion(input, extensionRegistry);
      }
    };

    @java.lang.Override
    public com.google.protobuf.Parser<ClientVersion> getParserForType() {
      return PARSER;
    }

    private int bitField0_;
    // required int32 major = 1;
    public static final int MAJOR_FIELD_NUMBER = 1;
    private int major_;
    /**
     * <code>required int32 major = 1;</code>
     */
    public boolean hasMajor() {
      return ((bitField0_ & 0x00000001) == 0x00000001);
    }
    /**
     * <code>required int32 major = 1;</code>
     */
    public int getMajor() {
      return major_;
    }

    // optional int32 minor = 2 [default = 0];
    public static final int MINOR_FIELD_NUMBER = 2;
    private int minor_;
    /**
     * <code>optional int32 minor = 2 [default = 0];</code>
     */
    public boolean hasMinor() {
      return ((bitField0_ & 0x00000002) == 0x00000002);
    }
    /**
     * <code>optional int32 minor = 2 [default = 0];</code>
     */
    public int getMinor() {
      return minor_;
    }

    // optional bytes previous_channel_contract_hash = 3;
    public static final int PREVIOUS_CHANNEL_CONTRACT_HASH_FIELD_NUMBER = 3;
    private com.google.protobuf.ByteString previousChannelContractHash_;
    /**
     * <code>optional bytes previous_channel_contract_hash = 3;</code>
     *
     * <pre>
     * The hash of the multisig contract of a previous channel. This indicates that the primary
     * wishes to reopen the given channel. If the server is willing to reopen it, it simply
     * responds with a SERVER_VERSION and then immediately sends a CHANNEL_OPEN, it otherwise
     * follows SERVER_VERSION with an Initiate representing a new channel
     * </pre>
     */
    public boolean hasPreviousChannelContractHash() {
      return ((bitField0_ & 0x00000004) == 0x00000004);
    }
    /**
     * <code>optional bytes previous_channel_contract_hash = 3;</code>
     *
     * <pre>
     * The hash of the multisig contract of a previous channel. This indicates that the primary
     * wishes to reopen the given channel. If the server is willing to reopen it, it simply
     * responds with a SERVER_VERSION and then immediately sends a CHANNEL_OPEN, it otherwise
     * follows SERVER_VERSION with an Initiate representing a new channel
     * </pre>
     */
    public com.google.protobuf.ByteString getPreviousChannelContractHash() {
      return previousChannelContractHash_;
    }

    private void initFields() {
      major_ = 0;
      minor_ = 0;
      previousChannelContractHash_ = com.google.protobuf.ByteString.EMPTY;
    }
    private byte memoizedIsInitialized = -1;
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized != -1) return isInitialized == 1;

      if (!hasMajor()) {
        memoizedIsInitialized = 0;
        return false;
      }
      memoizedIsInitialized = 1;
      return true;
    }

    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      getSerializedSize();
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        output.writeInt32(1, major_);
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        output.writeInt32(2, minor_);
      }
      if (((bitField0_ & 0x00000004) == 0x00000004)) {
        output.writeBytes(3, previousChannelContractHash_);
      }
      getUnknownFields().writeTo(output);
    }

    private int memoizedSerializedSize = -1;
    public int getSerializedSize() {
      int size = memoizedSerializedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        size += com.google.protobuf.CodedOutputStream
          .computeInt32Size(1, major_);
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        size += com.google.protobuf.CodedOutputStream
          .computeInt32Size(2, minor_);
      }
      if (((bitField0_ & 0x00000004) == 0x00000004)) {
        size += com.google.protobuf.CodedOutputStream
          .computeBytesSize(3, previousChannelContractHash_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSerializedSize = size;
      return size;
    }

    private static final long serialVersionUID = 0L;
    @java.lang.Override
    protected java.lang.Object writeReplace()
        throws java.io.ObjectStreamException {
      return super.writeReplace();
    }

    public static org.bitcoin.paymentchannel.Protos.ClientVersion parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.ClientVersion parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ClientVersion parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.ClientVersion parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ClientVersion parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ClientVersion parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ClientVersion parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ClientVersion parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ClientVersion parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ClientVersion parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }

    public static Builder newBuilder() { return Builder.create(); }
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder(org.bitcoin.paymentchannel.Protos.ClientVersion prototype) {
      return newBuilder().mergeFrom(prototype);
    }
    public Builder toBuilder() { return newBuilder(this); }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * Protobuf type {@code paymentchannels.ClientVersion}
     *
     * <pre>
     * Sent by primary to secondary on opening the connection. If anything is received before this is
     * sent, the socket is closed.
     * </pre>
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessage.Builder<Builder>
       implements org.bitcoin.paymentchannel.Protos.ClientVersionOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ClientVersion_descriptor;
      }

      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ClientVersion_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                org.bitcoin.paymentchannel.Protos.ClientVersion.class, org.bitcoin.paymentchannel.Protos.ClientVersion.Builder.class);
      }

      // Construct using org.bitcoin.paymentchannel.Protos.ClientVersion.newBuilder()
      private Builder() {
        maybeForceBuilderInitialization();
      }

      private Builder(
          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
        super(parent);
        maybeForceBuilderInitialization();
      }
      private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
        }
      }
      private static Builder create() {
        return new Builder();
      }

      public Builder clear() {
        super.clear();
        major_ = 0;
        bitField0_ = (bitField0_ & ~0x00000001);
        minor_ = 0;
        bitField0_ = (bitField0_ & ~0x00000002);
        previousChannelContractHash_ = com.google.protobuf.ByteString.EMPTY;
        bitField0_ = (bitField0_ & ~0x00000004);
        return this;
      }

      public Builder clone() {
        return create().mergeFrom(buildPartial());
      }

      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ClientVersion_descriptor;
      }

      public org.bitcoin.paymentchannel.Protos.ClientVersion getDefaultInstanceForType() {
        return org.bitcoin.paymentchannel.Protos.ClientVersion.getDefaultInstance();
      }

      public org.bitcoin.paymentchannel.Protos.ClientVersion build() {
        org.bitcoin.paymentchannel.Protos.ClientVersion result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      public org.bitcoin.paymentchannel.Protos.ClientVersion buildPartial() {
        org.bitcoin.paymentchannel.Protos.ClientVersion result = new org.bitcoin.paymentchannel.Protos.ClientVersion(this);
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
          to_bitField0_ |= 0x00000001;
        }
        result.major_ = major_;
        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
          to_bitField0_ |= 0x00000002;
        }
        result.minor_ = minor_;
        if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
          to_bitField0_ |= 0x00000004;
        }
        result.previousChannelContractHash_ = previousChannelContractHash_;
        result.bitField0_ = to_bitField0_;
        onBuilt();
        return result;
      }

      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.bitcoin.paymentchannel.Protos.ClientVersion) {
          return mergeFrom((org.bitcoin.paymentchannel.Protos.ClientVersion)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(org.bitcoin.paymentchannel.Protos.ClientVersion other) {
        if (other == org.bitcoin.paymentchannel.Protos.ClientVersion.getDefaultInstance()) return this;
        if (other.hasMajor()) {
          setMajor(other.getMajor());
        }
        if (other.hasMinor()) {
          setMinor(other.getMinor());
        }
        if (other.hasPreviousChannelContractHash()) {
          setPreviousChannelContractHash(other.getPreviousChannelContractHash());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        return this;
      }

      public final boolean isInitialized() {
        if (!hasMajor()) {
          
          return false;
        }
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.bitcoin.paymentchannel.Protos.ClientVersion parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.bitcoin.paymentchannel.Protos.ClientVersion) e.getUnfinishedMessage();
          throw e;
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }
      private int bitField0_;

      // required int32 major = 1;
      private int major_ ;
      /**
       * <code>required int32 major = 1;</code>
       */
      public boolean hasMajor() {
        return ((bitField0_ & 0x00000001) == 0x00000001);
      }
      /**
       * <code>required int32 major = 1;</code>
       */
      public int getMajor() {
        return major_;
      }
      /**
       * <code>required int32 major = 1;</code>
       */
      public Builder setMajor(int value) {
        bitField0_ |= 0x00000001;
        major_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required int32 major = 1;</code>
       */
      public Builder clearMajor() {
        bitField0_ = (bitField0_ & ~0x00000001);
        major_ = 0;
        onChanged();
        return this;
      }

      // optional int32 minor = 2 [default = 0];
      private int minor_ ;
      /**
       * <code>optional int32 minor = 2 [default = 0];</code>
       */
      public boolean hasMinor() {
        return ((bitField0_ & 0x00000002) == 0x00000002);
      }
      /**
       * <code>optional int32 minor = 2 [default = 0];</code>
       */
      public int getMinor() {
        return minor_;
      }
      /**
       * <code>optional int32 minor = 2 [default = 0];</code>
       */
      public Builder setMinor(int value) {
        bitField0_ |= 0x00000002;
        minor_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional int32 minor = 2 [default = 0];</code>
       */
      public Builder clearMinor() {
        bitField0_ = (bitField0_ & ~0x00000002);
        minor_ = 0;
        onChanged();
        return this;
      }

      // optional bytes previous_channel_contract_hash = 3;
      private com.google.protobuf.ByteString previousChannelContractHash_ = com.google.protobuf.ByteString.EMPTY;
      /**
       * <code>optional bytes previous_channel_contract_hash = 3;</code>
       *
       * <pre>
       * The hash of the multisig contract of a previous channel. This indicates that the primary
       * wishes to reopen the given channel. If the server is willing to reopen it, it simply
       * responds with a SERVER_VERSION and then immediately sends a CHANNEL_OPEN, it otherwise
       * follows SERVER_VERSION with an Initiate representing a new channel
       * </pre>
       */
      public boolean hasPreviousChannelContractHash() {
        return ((bitField0_ & 0x00000004) == 0x00000004);
      }
      /**
       * <code>optional bytes previous_channel_contract_hash = 3;</code>
       *
       * <pre>
       * The hash of the multisig contract of a previous channel. This indicates that the primary
       * wishes to reopen the given channel. If the server is willing to reopen it, it simply
       * responds with a SERVER_VERSION and then immediately sends a CHANNEL_OPEN, it otherwise
       * follows SERVER_VERSION with an Initiate representing a new channel
       * </pre>
       */
      public com.google.protobuf.ByteString getPreviousChannelContractHash() {
        return previousChannelContractHash_;
      }
      /**
       * <code>optional bytes previous_channel_contract_hash = 3;</code>
       *
       * <pre>
       * The hash of the multisig contract of a previous channel. This indicates that the primary
       * wishes to reopen the given channel. If the server is willing to reopen it, it simply
       * responds with a SERVER_VERSION and then immediately sends a CHANNEL_OPEN, it otherwise
       * follows SERVER_VERSION with an Initiate representing a new channel
       * </pre>
       */
      public Builder setPreviousChannelContractHash(com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000004;
        previousChannelContractHash_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional bytes previous_channel_contract_hash = 3;</code>
       *
       * <pre>
       * The hash of the multisig contract of a previous channel. This indicates that the primary
       * wishes to reopen the given channel. If the server is willing to reopen it, it simply
       * responds with a SERVER_VERSION and then immediately sends a CHANNEL_OPEN, it otherwise
       * follows SERVER_VERSION with an Initiate representing a new channel
       * </pre>
       */
      public Builder clearPreviousChannelContractHash() {
        bitField0_ = (bitField0_ & ~0x00000004);
        previousChannelContractHash_ = getDefaultInstance().getPreviousChannelContractHash();
        onChanged();
        return this;
      }

      // @@protoc_insertion_point(builder_scope:paymentchannels.ClientVersion)
    }

    static {
      defaultInstance = new ClientVersion(true);
      defaultInstance.initFields();
    }

    // @@protoc_insertion_point(class_scope:paymentchannels.ClientVersion)
  }

  public interface ServerVersionOrBuilder
      extends com.google.protobuf.MessageOrBuilder {

    // required int32 major = 1;
    /**
     * <code>required int32 major = 1;</code>
     */
    boolean hasMajor();
    /**
     * <code>required int32 major = 1;</code>
     */
    int getMajor();

    // optional int32 minor = 2 [default = 0];
    /**
     * <code>optional int32 minor = 2 [default = 0];</code>
     */
    boolean hasMinor();
    /**
     * <code>optional int32 minor = 2 [default = 0];</code>
     */
    int getMinor();
  }
  /**
   * Protobuf type {@code paymentchannels.ServerVersion}
   *
   * <pre>
   * Send by secondary to primary upon receiving the ClientVersion message. If it is willing to
   * speak the given major version, it sends back the same major version and the minor version it
   * speaks. If it is not, it may send back a lower major version representing the highest version
   * it is willing to speak, or sends a NO_ACCEPTABLE_VERSION Error. If the secondary sends back a
   * lower major version, the secondary should either expect to continue with that version, or
   * should immediately close the connection with a NO_ACCEPTABLE_VERSION Error. Backwards
   * incompatible changes to the protocol bump the major version. Extensions bump the minor version
   * </pre>
   */
  public static final class ServerVersion extends
      com.google.protobuf.GeneratedMessage
      implements ServerVersionOrBuilder {
    // Use ServerVersion.newBuilder() to construct.
    private ServerVersion(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
      super(builder);
      this.unknownFields = builder.getUnknownFields();
    }
    private ServerVersion(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }

    private static final ServerVersion defaultInstance;
    public static ServerVersion getDefaultInstance() {
      return defaultInstance;
    }

    public ServerVersion getDefaultInstanceForType() {
      return defaultInstance;
    }

    private final com.google.protobuf.UnknownFieldSet unknownFields;
    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
        getUnknownFields() {
      return this.unknownFields;
    }
    private ServerVersion(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      initFields();
      int mutable_bitField0_ = 0;
      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
          com.google.protobuf.UnknownFieldSet.newBuilder();
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!parseUnknownField(input, unknownFields,
                                     extensionRegistry, tag)) {
                done = true;
              }
              break;
            }
            case 8: {
              bitField0_ |= 0x00000001;
              major_ = input.readInt32();
              break;
            }
            case 16: {
              bitField0_ |= 0x00000002;
              minor_ = input.readInt32();
              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e.getMessage()).setUnfinishedMessage(this);
      } finally {
        this.unknownFields = unknownFields.build();
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ServerVersion_descriptor;
    }

    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ServerVersion_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.bitcoin.paymentchannel.Protos.ServerVersion.class, org.bitcoin.paymentchannel.Protos.ServerVersion.Builder.class);
    }

    public static com.google.protobuf.Parser<ServerVersion> PARSER =
        new com.google.protobuf.AbstractParser<ServerVersion>() {
      public ServerVersion parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return new ServerVersion(input, extensionRegistry);
      }
    };

    @java.lang.Override
    public com.google.protobuf.Parser<ServerVersion> getParserForType() {
      return PARSER;
    }

    private int bitField0_;
    // required int32 major = 1;
    public static final int MAJOR_FIELD_NUMBER = 1;
    private int major_;
    /**
     * <code>required int32 major = 1;</code>
     */
    public boolean hasMajor() {
      return ((bitField0_ & 0x00000001) == 0x00000001);
    }
    /**
     * <code>required int32 major = 1;</code>
     */
    public int getMajor() {
      return major_;
    }

    // optional int32 minor = 2 [default = 0];
    public static final int MINOR_FIELD_NUMBER = 2;
    private int minor_;
    /**
     * <code>optional int32 minor = 2 [default = 0];</code>
     */
    public boolean hasMinor() {
      return ((bitField0_ & 0x00000002) == 0x00000002);
    }
    /**
     * <code>optional int32 minor = 2 [default = 0];</code>
     */
    public int getMinor() {
      return minor_;
    }

    private void initFields() {
      major_ = 0;
      minor_ = 0;
    }
    private byte memoizedIsInitialized = -1;
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized != -1) return isInitialized == 1;

      if (!hasMajor()) {
        memoizedIsInitialized = 0;
        return false;
      }
      memoizedIsInitialized = 1;
      return true;
    }

    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      getSerializedSize();
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        output.writeInt32(1, major_);
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        output.writeInt32(2, minor_);
      }
      getUnknownFields().writeTo(output);
    }

    private int memoizedSerializedSize = -1;
    public int getSerializedSize() {
      int size = memoizedSerializedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        size += com.google.protobuf.CodedOutputStream
          .computeInt32Size(1, major_);
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        size += com.google.protobuf.CodedOutputStream
          .computeInt32Size(2, minor_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSerializedSize = size;
      return size;
    }

    private static final long serialVersionUID = 0L;
    @java.lang.Override
    protected java.lang.Object writeReplace()
        throws java.io.ObjectStreamException {
      return super.writeReplace();
    }

    public static org.bitcoin.paymentchannel.Protos.ServerVersion parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.ServerVersion parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ServerVersion parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.ServerVersion parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ServerVersion parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ServerVersion parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ServerVersion parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ServerVersion parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ServerVersion parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ServerVersion parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }

    public static Builder newBuilder() { return Builder.create(); }
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder(org.bitcoin.paymentchannel.Protos.ServerVersion prototype) {
      return newBuilder().mergeFrom(prototype);
    }
    public Builder toBuilder() { return newBuilder(this); }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * Protobuf type {@code paymentchannels.ServerVersion}
     *
     * <pre>
     * Send by secondary to primary upon receiving the ClientVersion message. If it is willing to
     * speak the given major version, it sends back the same major version and the minor version it
     * speaks. If it is not, it may send back a lower major version representing the highest version
     * it is willing to speak, or sends a NO_ACCEPTABLE_VERSION Error. If the secondary sends back a
     * lower major version, the secondary should either expect to continue with that version, or
     * should immediately close the connection with a NO_ACCEPTABLE_VERSION Error. Backwards
     * incompatible changes to the protocol bump the major version. Extensions bump the minor version
     * </pre>
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessage.Builder<Builder>
       implements org.bitcoin.paymentchannel.Protos.ServerVersionOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ServerVersion_descriptor;
      }

      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ServerVersion_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                org.bitcoin.paymentchannel.Protos.ServerVersion.class, org.bitcoin.paymentchannel.Protos.ServerVersion.Builder.class);
      }

      // Construct using org.bitcoin.paymentchannel.Protos.ServerVersion.newBuilder()
      private Builder() {
        maybeForceBuilderInitialization();
      }

      private Builder(
          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
        super(parent);
        maybeForceBuilderInitialization();
      }
      private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
        }
      }
      private static Builder create() {
        return new Builder();
      }

      public Builder clear() {
        super.clear();
        major_ = 0;
        bitField0_ = (bitField0_ & ~0x00000001);
        minor_ = 0;
        bitField0_ = (bitField0_ & ~0x00000002);
        return this;
      }

      public Builder clone() {
        return create().mergeFrom(buildPartial());
      }

      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ServerVersion_descriptor;
      }

      public org.bitcoin.paymentchannel.Protos.ServerVersion getDefaultInstanceForType() {
        return org.bitcoin.paymentchannel.Protos.ServerVersion.getDefaultInstance();
      }

      public org.bitcoin.paymentchannel.Protos.ServerVersion build() {
        org.bitcoin.paymentchannel.Protos.ServerVersion result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      public org.bitcoin.paymentchannel.Protos.ServerVersion buildPartial() {
        org.bitcoin.paymentchannel.Protos.ServerVersion result = new org.bitcoin.paymentchannel.Protos.ServerVersion(this);
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
          to_bitField0_ |= 0x00000001;
        }
        result.major_ = major_;
        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
          to_bitField0_ |= 0x00000002;
        }
        result.minor_ = minor_;
        result.bitField0_ = to_bitField0_;
        onBuilt();
        return result;
      }

      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.bitcoin.paymentchannel.Protos.ServerVersion) {
          return mergeFrom((org.bitcoin.paymentchannel.Protos.ServerVersion)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(org.bitcoin.paymentchannel.Protos.ServerVersion other) {
        if (other == org.bitcoin.paymentchannel.Protos.ServerVersion.getDefaultInstance()) return this;
        if (other.hasMajor()) {
          setMajor(other.getMajor());
        }
        if (other.hasMinor()) {
          setMinor(other.getMinor());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        return this;
      }

      public final boolean isInitialized() {
        if (!hasMajor()) {
          
          return false;
        }
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.bitcoin.paymentchannel.Protos.ServerVersion parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.bitcoin.paymentchannel.Protos.ServerVersion) e.getUnfinishedMessage();
          throw e;
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }
      private int bitField0_;

      // required int32 major = 1;
      private int major_ ;
      /**
       * <code>required int32 major = 1;</code>
       */
      public boolean hasMajor() {
        return ((bitField0_ & 0x00000001) == 0x00000001);
      }
      /**
       * <code>required int32 major = 1;</code>
       */
      public int getMajor() {
        return major_;
      }
      /**
       * <code>required int32 major = 1;</code>
       */
      public Builder setMajor(int value) {
        bitField0_ |= 0x00000001;
        major_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required int32 major = 1;</code>
       */
      public Builder clearMajor() {
        bitField0_ = (bitField0_ & ~0x00000001);
        major_ = 0;
        onChanged();
        return this;
      }

      // optional int32 minor = 2 [default = 0];
      private int minor_ ;
      /**
       * <code>optional int32 minor = 2 [default = 0];</code>
       */
      public boolean hasMinor() {
        return ((bitField0_ & 0x00000002) == 0x00000002);
      }
      /**
       * <code>optional int32 minor = 2 [default = 0];</code>
       */
      public int getMinor() {
        return minor_;
      }
      /**
       * <code>optional int32 minor = 2 [default = 0];</code>
       */
      public Builder setMinor(int value) {
        bitField0_ |= 0x00000002;
        minor_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional int32 minor = 2 [default = 0];</code>
       */
      public Builder clearMinor() {
        bitField0_ = (bitField0_ & ~0x00000002);
        minor_ = 0;
        onChanged();
        return this;
      }

      // @@protoc_insertion_point(builder_scope:paymentchannels.ServerVersion)
    }

    static {
      defaultInstance = new ServerVersion(true);
      defaultInstance.initFields();
    }

    // @@protoc_insertion_point(class_scope:paymentchannels.ServerVersion)
  }

  public interface InitiateOrBuilder
      extends com.google.protobuf.MessageOrBuilder {

    // required bytes multisig_key = 1;
    /**
     * <code>required bytes multisig_key = 1;</code>
     *
     * <pre>
     * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
     * are accepted. It is used only in the creation of the multisig contract, as outputs are
     * created entirely by the secondary
     * </pre>
     */
    boolean hasMultisigKey();
    /**
     * <code>required bytes multisig_key = 1;</code>
     *
     * <pre>
     * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
     * are accepted. It is used only in the creation of the multisig contract, as outputs are
     * created entirely by the secondary
     * </pre>
     */
    com.google.protobuf.ByteString getMultisigKey();

    // required uint64 min_accepted_channel_size = 2;
    /**
     * <code>required uint64 min_accepted_channel_size = 2;</code>
     *
     * <pre>
     * Once a channel is exhausted a new one must be set up. So secondary indicates the minimum
     * size it's willing to accept here. This can be lower to trade off resources against
     * security but shouldn't be so low the transactions get rejected by the network as spam.
     * Zero isn't a sensible value to have here, so we make the field required.
     * </pre>
     */
    boolean hasMinAcceptedChannelSize();
    /**
     * <code>required uint64 min_accepted_channel_size = 2;</code>
     *
     * <pre>
     * Once a channel is exhausted a new one must be set up. So secondary indicates the minimum
     * size it's willing to accept here. This can be lower to trade off resources against
     * security but shouldn't be so low the transactions get rejected by the network as spam.
     * Zero isn't a sensible value to have here, so we make the field required.
     * </pre>
     */
    long getMinAcceptedChannelSize();

    // required uint64 expire_time_secs = 3;
    /**
     * <code>required uint64 expire_time_secs = 3;</code>
     *
     * <pre>
     * Rough UNIX time for when the channel expires. This is determined by the block header
     * timestamps which can be very inaccurate when miners use the obsolete RollNTime hack.
     * Channels could also be specified in terms of block heights but then how do you know the
     * current chain height if you don't have internet access? Trust secondary? Probably opens up
     * attack vectors. We can assume primary has an independent clock, however. If primary
     * considers this value too far off (eg more than a day), it may send an ERROR and close the
     * channel.
     * </pre>
     */
    boolean hasExpireTimeSecs();
    /**
     * <code>required uint64 expire_time_secs = 3;</code>
     *
     * <pre>
     * Rough UNIX time for when the channel expires. This is determined by the block header
     * timestamps which can be very inaccurate when miners use the obsolete RollNTime hack.
     * Channels could also be specified in terms of block heights but then how do you know the
     * current chain height if you don't have internet access? Trust secondary? Probably opens up
     * attack vectors. We can assume primary has an independent clock, however. If primary
     * considers this value too far off (eg more than a day), it may send an ERROR and close the
     * channel.
     * </pre>
     */
    long getExpireTimeSecs();
  }
  /**
   * Protobuf type {@code paymentchannels.Initiate}
   *
   * <pre>
   * Sent from secondary to primary once version nego is done.
   * </pre>
   */
  public static final class Initiate extends
      com.google.protobuf.GeneratedMessage
      implements InitiateOrBuilder {
    // Use Initiate.newBuilder() to construct.
    private Initiate(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
      super(builder);
      this.unknownFields = builder.getUnknownFields();
    }
    private Initiate(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }

    private static final Initiate defaultInstance;
    public static Initiate getDefaultInstance() {
      return defaultInstance;
    }

    public Initiate getDefaultInstanceForType() {
      return defaultInstance;
    }

    private final com.google.protobuf.UnknownFieldSet unknownFields;
    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
        getUnknownFields() {
      return this.unknownFields;
    }
    private Initiate(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      initFields();
      int mutable_bitField0_ = 0;
      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
          com.google.protobuf.UnknownFieldSet.newBuilder();
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!parseUnknownField(input, unknownFields,
                                     extensionRegistry, tag)) {
                done = true;
              }
              break;
            }
            case 10: {
              bitField0_ |= 0x00000001;
              multisigKey_ = input.readBytes();
              break;
            }
            case 16: {
              bitField0_ |= 0x00000002;
              minAcceptedChannelSize_ = input.readUInt64();
              break;
            }
            case 24: {
              bitField0_ |= 0x00000004;
              expireTimeSecs_ = input.readUInt64();
              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e.getMessage()).setUnfinishedMessage(this);
      } finally {
        this.unknownFields = unknownFields.build();
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Initiate_descriptor;
    }

    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Initiate_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.bitcoin.paymentchannel.Protos.Initiate.class, org.bitcoin.paymentchannel.Protos.Initiate.Builder.class);
    }

    public static com.google.protobuf.Parser<Initiate> PARSER =
        new com.google.protobuf.AbstractParser<Initiate>() {
      public Initiate parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return new Initiate(input, extensionRegistry);
      }
    };

    @java.lang.Override
    public com.google.protobuf.Parser<Initiate> getParserForType() {
      return PARSER;
    }

    private int bitField0_;
    // required bytes multisig_key = 1;
    public static final int MULTISIG_KEY_FIELD_NUMBER = 1;
    private com.google.protobuf.ByteString multisigKey_;
    /**
     * <code>required bytes multisig_key = 1;</code>
     *
     * <pre>
     * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
     * are accepted. It is used only in the creation of the multisig contract, as outputs are
     * created entirely by the secondary
     * </pre>
     */
    public boolean hasMultisigKey() {
      return ((bitField0_ & 0x00000001) == 0x00000001);
    }
    /**
     * <code>required bytes multisig_key = 1;</code>
     *
     * <pre>
     * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
     * are accepted. It is used only in the creation of the multisig contract, as outputs are
     * created entirely by the secondary
     * </pre>
     */
    public com.google.protobuf.ByteString getMultisigKey() {
      return multisigKey_;
    }

    // required uint64 min_accepted_channel_size = 2;
    public static final int MIN_ACCEPTED_CHANNEL_SIZE_FIELD_NUMBER = 2;
    private long minAcceptedChannelSize_;
    /**
     * <code>required uint64 min_accepted_channel_size = 2;</code>
     *
     * <pre>
     * Once a channel is exhausted a new one must be set up. So secondary indicates the minimum
     * size it's willing to accept here. This can be lower to trade off resources against
     * security but shouldn't be so low the transactions get rejected by the network as spam.
     * Zero isn't a sensible value to have here, so we make the field required.
     * </pre>
     */
    public boolean hasMinAcceptedChannelSize() {
      return ((bitField0_ & 0x00000002) == 0x00000002);
    }
    /**
     * <code>required uint64 min_accepted_channel_size = 2;</code>
     *
     * <pre>
     * Once a channel is exhausted a new one must be set up. So secondary indicates the minimum
     * size it's willing to accept here. This can be lower to trade off resources against
     * security but shouldn't be so low the transactions get rejected by the network as spam.
     * Zero isn't a sensible value to have here, so we make the field required.
     * </pre>
     */
    public long getMinAcceptedChannelSize() {
      return minAcceptedChannelSize_;
    }

    // required uint64 expire_time_secs = 3;
    public static final int EXPIRE_TIME_SECS_FIELD_NUMBER = 3;
    private long expireTimeSecs_;
    /**
     * <code>required uint64 expire_time_secs = 3;</code>
     *
     * <pre>
     * Rough UNIX time for when the channel expires. This is determined by the block header
     * timestamps which can be very inaccurate when miners use the obsolete RollNTime hack.
     * Channels could also be specified in terms of block heights but then how do you know the
     * current chain height if you don't have internet access? Trust secondary? Probably opens up
     * attack vectors. We can assume primary has an independent clock, however. If primary
     * considers this value too far off (eg more than a day), it may send an ERROR and close the
     * channel.
     * </pre>
     */
    public boolean hasExpireTimeSecs() {
      return ((bitField0_ & 0x00000004) == 0x00000004);
    }
    /**
     * <code>required uint64 expire_time_secs = 3;</code>
     *
     * <pre>
     * Rough UNIX time for when the channel expires. This is determined by the block header
     * timestamps which can be very inaccurate when miners use the obsolete RollNTime hack.
     * Channels could also be specified in terms of block heights but then how do you know the
     * current chain height if you don't have internet access? Trust secondary? Probably opens up
     * attack vectors. We can assume primary has an independent clock, however. If primary
     * considers this value too far off (eg more than a day), it may send an ERROR and close the
     * channel.
     * </pre>
     */
    public long getExpireTimeSecs() {
      return expireTimeSecs_;
    }

    private void initFields() {
      multisigKey_ = com.google.protobuf.ByteString.EMPTY;
      minAcceptedChannelSize_ = 0L;
      expireTimeSecs_ = 0L;
    }
    private byte memoizedIsInitialized = -1;
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized != -1) return isInitialized == 1;

      if (!hasMultisigKey()) {
        memoizedIsInitialized = 0;
        return false;
      }
      if (!hasMinAcceptedChannelSize()) {
        memoizedIsInitialized = 0;
        return false;
      }
      if (!hasExpireTimeSecs()) {
        memoizedIsInitialized = 0;
        return false;
      }
      memoizedIsInitialized = 1;
      return true;
    }

    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      getSerializedSize();
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        output.writeBytes(1, multisigKey_);
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        output.writeUInt64(2, minAcceptedChannelSize_);
      }
      if (((bitField0_ & 0x00000004) == 0x00000004)) {
        output.writeUInt64(3, expireTimeSecs_);
      }
      getUnknownFields().writeTo(output);
    }

    private int memoizedSerializedSize = -1;
    public int getSerializedSize() {
      int size = memoizedSerializedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        size += com.google.protobuf.CodedOutputStream
          .computeBytesSize(1, multisigKey_);
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        size += com.google.protobuf.CodedOutputStream
          .computeUInt64Size(2, minAcceptedChannelSize_);
      }
      if (((bitField0_ & 0x00000004) == 0x00000004)) {
        size += com.google.protobuf.CodedOutputStream
          .computeUInt64Size(3, expireTimeSecs_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSerializedSize = size;
      return size;
    }

    private static final long serialVersionUID = 0L;
    @java.lang.Override
    protected java.lang.Object writeReplace()
        throws java.io.ObjectStreamException {
      return super.writeReplace();
    }

    public static org.bitcoin.paymentchannel.Protos.Initiate parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.Initiate parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.Initiate parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.Initiate parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.Initiate parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.Initiate parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.Initiate parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.Initiate parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.Initiate parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.Initiate parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }

    public static Builder newBuilder() { return Builder.create(); }
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder(org.bitcoin.paymentchannel.Protos.Initiate prototype) {
      return newBuilder().mergeFrom(prototype);
    }
    public Builder toBuilder() { return newBuilder(this); }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * Protobuf type {@code paymentchannels.Initiate}
     *
     * <pre>
     * Sent from secondary to primary once version nego is done.
     * </pre>
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessage.Builder<Builder>
       implements org.bitcoin.paymentchannel.Protos.InitiateOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Initiate_descriptor;
      }

      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Initiate_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                org.bitcoin.paymentchannel.Protos.Initiate.class, org.bitcoin.paymentchannel.Protos.Initiate.Builder.class);
      }

      // Construct using org.bitcoin.paymentchannel.Protos.Initiate.newBuilder()
      private Builder() {
        maybeForceBuilderInitialization();
      }

      private Builder(
          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
        super(parent);
        maybeForceBuilderInitialization();
      }
      private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
        }
      }
      private static Builder create() {
        return new Builder();
      }

      public Builder clear() {
        super.clear();
        multisigKey_ = com.google.protobuf.ByteString.EMPTY;
        bitField0_ = (bitField0_ & ~0x00000001);
        minAcceptedChannelSize_ = 0L;
        bitField0_ = (bitField0_ & ~0x00000002);
        expireTimeSecs_ = 0L;
        bitField0_ = (bitField0_ & ~0x00000004);
        return this;
      }

      public Builder clone() {
        return create().mergeFrom(buildPartial());
      }

      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Initiate_descriptor;
      }

      public org.bitcoin.paymentchannel.Protos.Initiate getDefaultInstanceForType() {
        return org.bitcoin.paymentchannel.Protos.Initiate.getDefaultInstance();
      }

      public org.bitcoin.paymentchannel.Protos.Initiate build() {
        org.bitcoin.paymentchannel.Protos.Initiate result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      public org.bitcoin.paymentchannel.Protos.Initiate buildPartial() {
        org.bitcoin.paymentchannel.Protos.Initiate result = new org.bitcoin.paymentchannel.Protos.Initiate(this);
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
          to_bitField0_ |= 0x00000001;
        }
        result.multisigKey_ = multisigKey_;
        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
          to_bitField0_ |= 0x00000002;
        }
        result.minAcceptedChannelSize_ = minAcceptedChannelSize_;
        if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
          to_bitField0_ |= 0x00000004;
        }
        result.expireTimeSecs_ = expireTimeSecs_;
        result.bitField0_ = to_bitField0_;
        onBuilt();
        return result;
      }

      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.bitcoin.paymentchannel.Protos.Initiate) {
          return mergeFrom((org.bitcoin.paymentchannel.Protos.Initiate)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(org.bitcoin.paymentchannel.Protos.Initiate other) {
        if (other == org.bitcoin.paymentchannel.Protos.Initiate.getDefaultInstance()) return this;
        if (other.hasMultisigKey()) {
          setMultisigKey(other.getMultisigKey());
        }
        if (other.hasMinAcceptedChannelSize()) {
          setMinAcceptedChannelSize(other.getMinAcceptedChannelSize());
        }
        if (other.hasExpireTimeSecs()) {
          setExpireTimeSecs(other.getExpireTimeSecs());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        return this;
      }

      public final boolean isInitialized() {
        if (!hasMultisigKey()) {
          
          return false;
        }
        if (!hasMinAcceptedChannelSize()) {
          
          return false;
        }
        if (!hasExpireTimeSecs()) {
          
          return false;
        }
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.bitcoin.paymentchannel.Protos.Initiate parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.bitcoin.paymentchannel.Protos.Initiate) e.getUnfinishedMessage();
          throw e;
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }
      private int bitField0_;

      // required bytes multisig_key = 1;
      private com.google.protobuf.ByteString multisigKey_ = com.google.protobuf.ByteString.EMPTY;
      /**
       * <code>required bytes multisig_key = 1;</code>
       *
       * <pre>
       * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
       * are accepted. It is used only in the creation of the multisig contract, as outputs are
       * created entirely by the secondary
       * </pre>
       */
      public boolean hasMultisigKey() {
        return ((bitField0_ & 0x00000001) == 0x00000001);
      }
      /**
       * <code>required bytes multisig_key = 1;</code>
       *
       * <pre>
       * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
       * are accepted. It is used only in the creation of the multisig contract, as outputs are
       * created entirely by the secondary
       * </pre>
       */
      public com.google.protobuf.ByteString getMultisigKey() {
        return multisigKey_;
      }
      /**
       * <code>required bytes multisig_key = 1;</code>
       *
       * <pre>
       * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
       * are accepted. It is used only in the creation of the multisig contract, as outputs are
       * created entirely by the secondary
       * </pre>
       */
      public Builder setMultisigKey(com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000001;
        multisigKey_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required bytes multisig_key = 1;</code>
       *
       * <pre>
       * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
       * are accepted. It is used only in the creation of the multisig contract, as outputs are
       * created entirely by the secondary
       * </pre>
       */
      public Builder clearMultisigKey() {
        bitField0_ = (bitField0_ & ~0x00000001);
        multisigKey_ = getDefaultInstance().getMultisigKey();
        onChanged();
        return this;
      }

      // required uint64 min_accepted_channel_size = 2;
      private long minAcceptedChannelSize_ ;
      /**
       * <code>required uint64 min_accepted_channel_size = 2;</code>
       *
       * <pre>
       * Once a channel is exhausted a new one must be set up. So secondary indicates the minimum
       * size it's willing to accept here. This can be lower to trade off resources against
       * security but shouldn't be so low the transactions get rejected by the network as spam.
       * Zero isn't a sensible value to have here, so we make the field required.
       * </pre>
       */
      public boolean hasMinAcceptedChannelSize() {
        return ((bitField0_ & 0x00000002) == 0x00000002);
      }
      /**
       * <code>required uint64 min_accepted_channel_size = 2;</code>
       *
       * <pre>
       * Once a channel is exhausted a new one must be set up. So secondary indicates the minimum
       * size it's willing to accept here. This can be lower to trade off resources against
       * security but shouldn't be so low the transactions get rejected by the network as spam.
       * Zero isn't a sensible value to have here, so we make the field required.
       * </pre>
       */
      public long getMinAcceptedChannelSize() {
        return minAcceptedChannelSize_;
      }
      /**
       * <code>required uint64 min_accepted_channel_size = 2;</code>
       *
       * <pre>
       * Once a channel is exhausted a new one must be set up. So secondary indicates the minimum
       * size it's willing to accept here. This can be lower to trade off resources against
       * security but shouldn't be so low the transactions get rejected by the network as spam.
       * Zero isn't a sensible value to have here, so we make the field required.
       * </pre>
       */
      public Builder setMinAcceptedChannelSize(long value) {
        bitField0_ |= 0x00000002;
        minAcceptedChannelSize_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required uint64 min_accepted_channel_size = 2;</code>
       *
       * <pre>
       * Once a channel is exhausted a new one must be set up. So secondary indicates the minimum
       * size it's willing to accept here. This can be lower to trade off resources against
       * security but shouldn't be so low the transactions get rejected by the network as spam.
       * Zero isn't a sensible value to have here, so we make the field required.
       * </pre>
       */
      public Builder clearMinAcceptedChannelSize() {
        bitField0_ = (bitField0_ & ~0x00000002);
        minAcceptedChannelSize_ = 0L;
        onChanged();
        return this;
      }

      // required uint64 expire_time_secs = 3;
      private long expireTimeSecs_ ;
      /**
       * <code>required uint64 expire_time_secs = 3;</code>
       *
       * <pre>
       * Rough UNIX time for when the channel expires. This is determined by the block header
       * timestamps which can be very inaccurate when miners use the obsolete RollNTime hack.
       * Channels could also be specified in terms of block heights but then how do you know the
       * current chain height if you don't have internet access? Trust secondary? Probably opens up
       * attack vectors. We can assume primary has an independent clock, however. If primary
       * considers this value too far off (eg more than a day), it may send an ERROR and close the
       * channel.
       * </pre>
       */
      public boolean hasExpireTimeSecs() {
        return ((bitField0_ & 0x00000004) == 0x00000004);
      }
      /**
       * <code>required uint64 expire_time_secs = 3;</code>
       *
       * <pre>
       * Rough UNIX time for when the channel expires. This is determined by the block header
       * timestamps which can be very inaccurate when miners use the obsolete RollNTime hack.
       * Channels could also be specified in terms of block heights but then how do you know the
       * current chain height if you don't have internet access? Trust secondary? Probably opens up
       * attack vectors. We can assume primary has an independent clock, however. If primary
       * considers this value too far off (eg more than a day), it may send an ERROR and close the
       * channel.
       * </pre>
       */
      public long getExpireTimeSecs() {
        return expireTimeSecs_;
      }
      /**
       * <code>required uint64 expire_time_secs = 3;</code>
       *
       * <pre>
       * Rough UNIX time for when the channel expires. This is determined by the block header
       * timestamps which can be very inaccurate when miners use the obsolete RollNTime hack.
       * Channels could also be specified in terms of block heights but then how do you know the
       * current chain height if you don't have internet access? Trust secondary? Probably opens up
       * attack vectors. We can assume primary has an independent clock, however. If primary
       * considers this value too far off (eg more than a day), it may send an ERROR and close the
       * channel.
       * </pre>
       */
      public Builder setExpireTimeSecs(long value) {
        bitField0_ |= 0x00000004;
        expireTimeSecs_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required uint64 expire_time_secs = 3;</code>
       *
       * <pre>
       * Rough UNIX time for when the channel expires. This is determined by the block header
       * timestamps which can be very inaccurate when miners use the obsolete RollNTime hack.
       * Channels could also be specified in terms of block heights but then how do you know the
       * current chain height if you don't have internet access? Trust secondary? Probably opens up
       * attack vectors. We can assume primary has an independent clock, however. If primary
       * considers this value too far off (eg more than a day), it may send an ERROR and close the
       * channel.
       * </pre>
       */
      public Builder clearExpireTimeSecs() {
        bitField0_ = (bitField0_ & ~0x00000004);
        expireTimeSecs_ = 0L;
        onChanged();
        return this;
      }

      // @@protoc_insertion_point(builder_scope:paymentchannels.Initiate)
    }

    static {
      defaultInstance = new Initiate(true);
      defaultInstance.initFields();
    }

    // @@protoc_insertion_point(class_scope:paymentchannels.Initiate)
  }

  public interface ProvideRefundOrBuilder
      extends com.google.protobuf.MessageOrBuilder {

    // required bytes multisig_key = 1;
    /**
     * <code>required bytes multisig_key = 1;</code>
     *
     * <pre>
     * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
     * are accepted.  It is only used in the creation of the multisig contract.
     * </pre>
     */
    boolean hasMultisigKey();
    /**
     * <code>required bytes multisig_key = 1;</code>
     *
     * <pre>
     * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
     * are accepted.  It is only used in the creation of the multisig contract.
     * </pre>
     */
    com.google.protobuf.ByteString getMultisigKey();

    // required bytes tx = 2;
    /**
     * <code>required bytes tx = 2;</code>
     *
     * <pre>
     * The serialized bytes of the return transaction in Satoshi format.
     * * It must have exactly one input which spends the multisig output (see ProvideContract for
     *   details of exactly what that output must look like). This output must have a sequence
     *   number of 0.
     * * It must have the lock time set to a time after the min_time_window_secs (from the
     *   Initiate message).
     * * It must have exactly one output which goes back to the primary.  This output's
     *   scriptPubKey will be reused to create payment transactions.
     * </pre>
     */
    boolean hasTx();
    /**
     * <code>required bytes tx = 2;</code>
     *
     * <pre>
     * The serialized bytes of the return transaction in Satoshi format.
     * * It must have exactly one input which spends the multisig output (see ProvideContract for
     *   details of exactly what that output must look like). This output must have a sequence
     *   number of 0.
     * * It must have the lock time set to a time after the min_time_window_secs (from the
     *   Initiate message).
     * * It must have exactly one output which goes back to the primary.  This output's
     *   scriptPubKey will be reused to create payment transactions.
     * </pre>
     */
    com.google.protobuf.ByteString getTx();
  }
  /**
   * Protobuf type {@code paymentchannels.ProvideRefund}
   *
   * <pre>
   * Sent from primary to secondary after Initiate to begin the refund transaction signing.
   * </pre>
   */
  public static final class ProvideRefund extends
      com.google.protobuf.GeneratedMessage
      implements ProvideRefundOrBuilder {
    // Use ProvideRefund.newBuilder() to construct.
    private ProvideRefund(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
      super(builder);
      this.unknownFields = builder.getUnknownFields();
    }
    private ProvideRefund(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }

    private static final ProvideRefund defaultInstance;
    public static ProvideRefund getDefaultInstance() {
      return defaultInstance;
    }

    public ProvideRefund getDefaultInstanceForType() {
      return defaultInstance;
    }

    private final com.google.protobuf.UnknownFieldSet unknownFields;
    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
        getUnknownFields() {
      return this.unknownFields;
    }
    private ProvideRefund(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      initFields();
      int mutable_bitField0_ = 0;
      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
          com.google.protobuf.UnknownFieldSet.newBuilder();
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!parseUnknownField(input, unknownFields,
                                     extensionRegistry, tag)) {
                done = true;
              }
              break;
            }
            case 10: {
              bitField0_ |= 0x00000001;
              multisigKey_ = input.readBytes();
              break;
            }
            case 18: {
              bitField0_ |= 0x00000002;
              tx_ = input.readBytes();
              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e.getMessage()).setUnfinishedMessage(this);
      } finally {
        this.unknownFields = unknownFields.build();
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ProvideRefund_descriptor;
    }

    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ProvideRefund_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.bitcoin.paymentchannel.Protos.ProvideRefund.class, org.bitcoin.paymentchannel.Protos.ProvideRefund.Builder.class);
    }

    public static com.google.protobuf.Parser<ProvideRefund> PARSER =
        new com.google.protobuf.AbstractParser<ProvideRefund>() {
      public ProvideRefund parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return new ProvideRefund(input, extensionRegistry);
      }
    };

    @java.lang.Override
    public com.google.protobuf.Parser<ProvideRefund> getParserForType() {
      return PARSER;
    }

    private int bitField0_;
    // required bytes multisig_key = 1;
    public static final int MULTISIG_KEY_FIELD_NUMBER = 1;
    private com.google.protobuf.ByteString multisigKey_;
    /**
     * <code>required bytes multisig_key = 1;</code>
     *
     * <pre>
     * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
     * are accepted.  It is only used in the creation of the multisig contract.
     * </pre>
     */
    public boolean hasMultisigKey() {
      return ((bitField0_ & 0x00000001) == 0x00000001);
    }
    /**
     * <code>required bytes multisig_key = 1;</code>
     *
     * <pre>
     * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
     * are accepted.  It is only used in the creation of the multisig contract.
     * </pre>
     */
    public com.google.protobuf.ByteString getMultisigKey() {
      return multisigKey_;
    }

    // required bytes tx = 2;
    public static final int TX_FIELD_NUMBER = 2;
    private com.google.protobuf.ByteString tx_;
    /**
     * <code>required bytes tx = 2;</code>
     *
     * <pre>
     * The serialized bytes of the return transaction in Satoshi format.
     * * It must have exactly one input which spends the multisig output (see ProvideContract for
     *   details of exactly what that output must look like). This output must have a sequence
     *   number of 0.
     * * It must have the lock time set to a time after the min_time_window_secs (from the
     *   Initiate message).
     * * It must have exactly one output which goes back to the primary.  This output's
     *   scriptPubKey will be reused to create payment transactions.
     * </pre>
     */
    public boolean hasTx() {
      return ((bitField0_ & 0x00000002) == 0x00000002);
    }
    /**
     * <code>required bytes tx = 2;</code>
     *
     * <pre>
     * The serialized bytes of the return transaction in Satoshi format.
     * * It must have exactly one input which spends the multisig output (see ProvideContract for
     *   details of exactly what that output must look like). This output must have a sequence
     *   number of 0.
     * * It must have the lock time set to a time after the min_time_window_secs (from the
     *   Initiate message).
     * * It must have exactly one output which goes back to the primary.  This output's
     *   scriptPubKey will be reused to create payment transactions.
     * </pre>
     */
    public com.google.protobuf.ByteString getTx() {
      return tx_;
    }

    private void initFields() {
      multisigKey_ = com.google.protobuf.ByteString.EMPTY;
      tx_ = com.google.protobuf.ByteString.EMPTY;
    }
    private byte memoizedIsInitialized = -1;
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized != -1) return isInitialized == 1;

      if (!hasMultisigKey()) {
        memoizedIsInitialized = 0;
        return false;
      }
      if (!hasTx()) {
        memoizedIsInitialized = 0;
        return false;
      }
      memoizedIsInitialized = 1;
      return true;
    }

    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      getSerializedSize();
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        output.writeBytes(1, multisigKey_);
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        output.writeBytes(2, tx_);
      }
      getUnknownFields().writeTo(output);
    }

    private int memoizedSerializedSize = -1;
    public int getSerializedSize() {
      int size = memoizedSerializedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        size += com.google.protobuf.CodedOutputStream
          .computeBytesSize(1, multisigKey_);
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        size += com.google.protobuf.CodedOutputStream
          .computeBytesSize(2, tx_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSerializedSize = size;
      return size;
    }

    private static final long serialVersionUID = 0L;
    @java.lang.Override
    protected java.lang.Object writeReplace()
        throws java.io.ObjectStreamException {
      return super.writeReplace();
    }

    public static org.bitcoin.paymentchannel.Protos.ProvideRefund parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideRefund parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideRefund parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideRefund parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideRefund parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideRefund parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideRefund parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideRefund parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideRefund parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideRefund parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }

    public static Builder newBuilder() { return Builder.create(); }
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder(org.bitcoin.paymentchannel.Protos.ProvideRefund prototype) {
      return newBuilder().mergeFrom(prototype);
    }
    public Builder toBuilder() { return newBuilder(this); }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * Protobuf type {@code paymentchannels.ProvideRefund}
     *
     * <pre>
     * Sent from primary to secondary after Initiate to begin the refund transaction signing.
     * </pre>
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessage.Builder<Builder>
       implements org.bitcoin.paymentchannel.Protos.ProvideRefundOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ProvideRefund_descriptor;
      }

      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ProvideRefund_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                org.bitcoin.paymentchannel.Protos.ProvideRefund.class, org.bitcoin.paymentchannel.Protos.ProvideRefund.Builder.class);
      }

      // Construct using org.bitcoin.paymentchannel.Protos.ProvideRefund.newBuilder()
      private Builder() {
        maybeForceBuilderInitialization();
      }

      private Builder(
          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
        super(parent);
        maybeForceBuilderInitialization();
      }
      private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
        }
      }
      private static Builder create() {
        return new Builder();
      }

      public Builder clear() {
        super.clear();
        multisigKey_ = com.google.protobuf.ByteString.EMPTY;
        bitField0_ = (bitField0_ & ~0x00000001);
        tx_ = com.google.protobuf.ByteString.EMPTY;
        bitField0_ = (bitField0_ & ~0x00000002);
        return this;
      }

      public Builder clone() {
        return create().mergeFrom(buildPartial());
      }

      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ProvideRefund_descriptor;
      }

      public org.bitcoin.paymentchannel.Protos.ProvideRefund getDefaultInstanceForType() {
        return org.bitcoin.paymentchannel.Protos.ProvideRefund.getDefaultInstance();
      }

      public org.bitcoin.paymentchannel.Protos.ProvideRefund build() {
        org.bitcoin.paymentchannel.Protos.ProvideRefund result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      public org.bitcoin.paymentchannel.Protos.ProvideRefund buildPartial() {
        org.bitcoin.paymentchannel.Protos.ProvideRefund result = new org.bitcoin.paymentchannel.Protos.ProvideRefund(this);
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
          to_bitField0_ |= 0x00000001;
        }
        result.multisigKey_ = multisigKey_;
        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
          to_bitField0_ |= 0x00000002;
        }
        result.tx_ = tx_;
        result.bitField0_ = to_bitField0_;
        onBuilt();
        return result;
      }

      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.bitcoin.paymentchannel.Protos.ProvideRefund) {
          return mergeFrom((org.bitcoin.paymentchannel.Protos.ProvideRefund)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(org.bitcoin.paymentchannel.Protos.ProvideRefund other) {
        if (other == org.bitcoin.paymentchannel.Protos.ProvideRefund.getDefaultInstance()) return this;
        if (other.hasMultisigKey()) {
          setMultisigKey(other.getMultisigKey());
        }
        if (other.hasTx()) {
          setTx(other.getTx());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        return this;
      }

      public final boolean isInitialized() {
        if (!hasMultisigKey()) {
          
          return false;
        }
        if (!hasTx()) {
          
          return false;
        }
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.bitcoin.paymentchannel.Protos.ProvideRefund parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.bitcoin.paymentchannel.Protos.ProvideRefund) e.getUnfinishedMessage();
          throw e;
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }
      private int bitField0_;

      // required bytes multisig_key = 1;
      private com.google.protobuf.ByteString multisigKey_ = com.google.protobuf.ByteString.EMPTY;
      /**
       * <code>required bytes multisig_key = 1;</code>
       *
       * <pre>
       * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
       * are accepted.  It is only used in the creation of the multisig contract.
       * </pre>
       */
      public boolean hasMultisigKey() {
        return ((bitField0_ & 0x00000001) == 0x00000001);
      }
      /**
       * <code>required bytes multisig_key = 1;</code>
       *
       * <pre>
       * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
       * are accepted.  It is only used in the creation of the multisig contract.
       * </pre>
       */
      public com.google.protobuf.ByteString getMultisigKey() {
        return multisigKey_;
      }
      /**
       * <code>required bytes multisig_key = 1;</code>
       *
       * <pre>
       * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
       * are accepted.  It is only used in the creation of the multisig contract.
       * </pre>
       */
      public Builder setMultisigKey(com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000001;
        multisigKey_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required bytes multisig_key = 1;</code>
       *
       * <pre>
       * This must be a raw pubkey in regular ECDSA form. Both compressed and non-compressed forms
       * are accepted.  It is only used in the creation of the multisig contract.
       * </pre>
       */
      public Builder clearMultisigKey() {
        bitField0_ = (bitField0_ & ~0x00000001);
        multisigKey_ = getDefaultInstance().getMultisigKey();
        onChanged();
        return this;
      }

      // required bytes tx = 2;
      private com.google.protobuf.ByteString tx_ = com.google.protobuf.ByteString.EMPTY;
      /**
       * <code>required bytes tx = 2;</code>
       *
       * <pre>
       * The serialized bytes of the return transaction in Satoshi format.
       * * It must have exactly one input which spends the multisig output (see ProvideContract for
       *   details of exactly what that output must look like). This output must have a sequence
       *   number of 0.
       * * It must have the lock time set to a time after the min_time_window_secs (from the
       *   Initiate message).
       * * It must have exactly one output which goes back to the primary.  This output's
       *   scriptPubKey will be reused to create payment transactions.
       * </pre>
       */
      public boolean hasTx() {
        return ((bitField0_ & 0x00000002) == 0x00000002);
      }
      /**
       * <code>required bytes tx = 2;</code>
       *
       * <pre>
       * The serialized bytes of the return transaction in Satoshi format.
       * * It must have exactly one input which spends the multisig output (see ProvideContract for
       *   details of exactly what that output must look like). This output must have a sequence
       *   number of 0.
       * * It must have the lock time set to a time after the min_time_window_secs (from the
       *   Initiate message).
       * * It must have exactly one output which goes back to the primary.  This output's
       *   scriptPubKey will be reused to create payment transactions.
       * </pre>
       */
      public com.google.protobuf.ByteString getTx() {
        return tx_;
      }
      /**
       * <code>required bytes tx = 2;</code>
       *
       * <pre>
       * The serialized bytes of the return transaction in Satoshi format.
       * * It must have exactly one input which spends the multisig output (see ProvideContract for
       *   details of exactly what that output must look like). This output must have a sequence
       *   number of 0.
       * * It must have the lock time set to a time after the min_time_window_secs (from the
       *   Initiate message).
       * * It must have exactly one output which goes back to the primary.  This output's
       *   scriptPubKey will be reused to create payment transactions.
       * </pre>
       */
      public Builder setTx(com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000002;
        tx_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required bytes tx = 2;</code>
       *
       * <pre>
       * The serialized bytes of the return transaction in Satoshi format.
       * * It must have exactly one input which spends the multisig output (see ProvideContract for
       *   details of exactly what that output must look like). This output must have a sequence
       *   number of 0.
       * * It must have the lock time set to a time after the min_time_window_secs (from the
       *   Initiate message).
       * * It must have exactly one output which goes back to the primary.  This output's
       *   scriptPubKey will be reused to create payment transactions.
       * </pre>
       */
      public Builder clearTx() {
        bitField0_ = (bitField0_ & ~0x00000002);
        tx_ = getDefaultInstance().getTx();
        onChanged();
        return this;
      }

      // @@protoc_insertion_point(builder_scope:paymentchannels.ProvideRefund)
    }

    static {
      defaultInstance = new ProvideRefund(true);
      defaultInstance.initFields();
    }

    // @@protoc_insertion_point(class_scope:paymentchannels.ProvideRefund)
  }

  public interface ReturnRefundOrBuilder
      extends com.google.protobuf.MessageOrBuilder {

    // required bytes signature = 1;
    /**
     * <code>required bytes signature = 1;</code>
     */
    boolean hasSignature();
    /**
     * <code>required bytes signature = 1;</code>
     */
    com.google.protobuf.ByteString getSignature();
  }
  /**
   * Protobuf type {@code paymentchannels.ReturnRefund}
   *
   * <pre>
   * Sent from secondary to primary after it has done initial verification of the refund
   * transaction. Contains the primary's signature which is required to spend the multisig contract
   * to the refund transaction. Must be signed using SIGHASH_NONE|SIGHASH_ANYONECANPAY (and include
   * the postfix type byte) to allow the client to add any outputs/inputs it wants as long as the
   * input's sequence and transaction's nLockTime remain set.
   * </pre>
   */
  public static final class ReturnRefund extends
      com.google.protobuf.GeneratedMessage
      implements ReturnRefundOrBuilder {
    // Use ReturnRefund.newBuilder() to construct.
    private ReturnRefund(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
      super(builder);
      this.unknownFields = builder.getUnknownFields();
    }
    private ReturnRefund(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }

    private static final ReturnRefund defaultInstance;
    public static ReturnRefund getDefaultInstance() {
      return defaultInstance;
    }

    public ReturnRefund getDefaultInstanceForType() {
      return defaultInstance;
    }

    private final com.google.protobuf.UnknownFieldSet unknownFields;
    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
        getUnknownFields() {
      return this.unknownFields;
    }
    private ReturnRefund(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      initFields();
      int mutable_bitField0_ = 0;
      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
          com.google.protobuf.UnknownFieldSet.newBuilder();
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!parseUnknownField(input, unknownFields,
                                     extensionRegistry, tag)) {
                done = true;
              }
              break;
            }
            case 10: {
              bitField0_ |= 0x00000001;
              signature_ = input.readBytes();
              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e.getMessage()).setUnfinishedMessage(this);
      } finally {
        this.unknownFields = unknownFields.build();
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ReturnRefund_descriptor;
    }

    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ReturnRefund_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.bitcoin.paymentchannel.Protos.ReturnRefund.class, org.bitcoin.paymentchannel.Protos.ReturnRefund.Builder.class);
    }

    public static com.google.protobuf.Parser<ReturnRefund> PARSER =
        new com.google.protobuf.AbstractParser<ReturnRefund>() {
      public ReturnRefund parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return new ReturnRefund(input, extensionRegistry);
      }
    };

    @java.lang.Override
    public com.google.protobuf.Parser<ReturnRefund> getParserForType() {
      return PARSER;
    }

    private int bitField0_;
    // required bytes signature = 1;
    public static final int SIGNATURE_FIELD_NUMBER = 1;
    private com.google.protobuf.ByteString signature_;
    /**
     * <code>required bytes signature = 1;</code>
     */
    public boolean hasSignature() {
      return ((bitField0_ & 0x00000001) == 0x00000001);
    }
    /**
     * <code>required bytes signature = 1;</code>
     */
    public com.google.protobuf.ByteString getSignature() {
      return signature_;
    }

    private void initFields() {
      signature_ = com.google.protobuf.ByteString.EMPTY;
    }
    private byte memoizedIsInitialized = -1;
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized != -1) return isInitialized == 1;

      if (!hasSignature()) {
        memoizedIsInitialized = 0;
        return false;
      }
      memoizedIsInitialized = 1;
      return true;
    }

    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      getSerializedSize();
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        output.writeBytes(1, signature_);
      }
      getUnknownFields().writeTo(output);
    }

    private int memoizedSerializedSize = -1;
    public int getSerializedSize() {
      int size = memoizedSerializedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        size += com.google.protobuf.CodedOutputStream
          .computeBytesSize(1, signature_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSerializedSize = size;
      return size;
    }

    private static final long serialVersionUID = 0L;
    @java.lang.Override
    protected java.lang.Object writeReplace()
        throws java.io.ObjectStreamException {
      return super.writeReplace();
    }

    public static org.bitcoin.paymentchannel.Protos.ReturnRefund parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.ReturnRefund parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ReturnRefund parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.ReturnRefund parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ReturnRefund parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ReturnRefund parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ReturnRefund parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ReturnRefund parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ReturnRefund parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ReturnRefund parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }

    public static Builder newBuilder() { return Builder.create(); }
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder(org.bitcoin.paymentchannel.Protos.ReturnRefund prototype) {
      return newBuilder().mergeFrom(prototype);
    }
    public Builder toBuilder() { return newBuilder(this); }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * Protobuf type {@code paymentchannels.ReturnRefund}
     *
     * <pre>
     * Sent from secondary to primary after it has done initial verification of the refund
     * transaction. Contains the primary's signature which is required to spend the multisig contract
     * to the refund transaction. Must be signed using SIGHASH_NONE|SIGHASH_ANYONECANPAY (and include
     * the postfix type byte) to allow the client to add any outputs/inputs it wants as long as the
     * input's sequence and transaction's nLockTime remain set.
     * </pre>
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessage.Builder<Builder>
       implements org.bitcoin.paymentchannel.Protos.ReturnRefundOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ReturnRefund_descriptor;
      }

      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ReturnRefund_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                org.bitcoin.paymentchannel.Protos.ReturnRefund.class, org.bitcoin.paymentchannel.Protos.ReturnRefund.Builder.class);
      }

      // Construct using org.bitcoin.paymentchannel.Protos.ReturnRefund.newBuilder()
      private Builder() {
        maybeForceBuilderInitialization();
      }

      private Builder(
          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
        super(parent);
        maybeForceBuilderInitialization();
      }
      private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
        }
      }
      private static Builder create() {
        return new Builder();
      }

      public Builder clear() {
        super.clear();
        signature_ = com.google.protobuf.ByteString.EMPTY;
        bitField0_ = (bitField0_ & ~0x00000001);
        return this;
      }

      public Builder clone() {
        return create().mergeFrom(buildPartial());
      }

      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ReturnRefund_descriptor;
      }

      public org.bitcoin.paymentchannel.Protos.ReturnRefund getDefaultInstanceForType() {
        return org.bitcoin.paymentchannel.Protos.ReturnRefund.getDefaultInstance();
      }

      public org.bitcoin.paymentchannel.Protos.ReturnRefund build() {
        org.bitcoin.paymentchannel.Protos.ReturnRefund result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      public org.bitcoin.paymentchannel.Protos.ReturnRefund buildPartial() {
        org.bitcoin.paymentchannel.Protos.ReturnRefund result = new org.bitcoin.paymentchannel.Protos.ReturnRefund(this);
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
          to_bitField0_ |= 0x00000001;
        }
        result.signature_ = signature_;
        result.bitField0_ = to_bitField0_;
        onBuilt();
        return result;
      }

      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.bitcoin.paymentchannel.Protos.ReturnRefund) {
          return mergeFrom((org.bitcoin.paymentchannel.Protos.ReturnRefund)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(org.bitcoin.paymentchannel.Protos.ReturnRefund other) {
        if (other == org.bitcoin.paymentchannel.Protos.ReturnRefund.getDefaultInstance()) return this;
        if (other.hasSignature()) {
          setSignature(other.getSignature());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        return this;
      }

      public final boolean isInitialized() {
        if (!hasSignature()) {
          
          return false;
        }
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.bitcoin.paymentchannel.Protos.ReturnRefund parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.bitcoin.paymentchannel.Protos.ReturnRefund) e.getUnfinishedMessage();
          throw e;
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }
      private int bitField0_;

      // required bytes signature = 1;
      private com.google.protobuf.ByteString signature_ = com.google.protobuf.ByteString.EMPTY;
      /**
       * <code>required bytes signature = 1;</code>
       */
      public boolean hasSignature() {
        return ((bitField0_ & 0x00000001) == 0x00000001);
      }
      /**
       * <code>required bytes signature = 1;</code>
       */
      public com.google.protobuf.ByteString getSignature() {
        return signature_;
      }
      /**
       * <code>required bytes signature = 1;</code>
       */
      public Builder setSignature(com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000001;
        signature_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required bytes signature = 1;</code>
       */
      public Builder clearSignature() {
        bitField0_ = (bitField0_ & ~0x00000001);
        signature_ = getDefaultInstance().getSignature();
        onChanged();
        return this;
      }

      // @@protoc_insertion_point(builder_scope:paymentchannels.ReturnRefund)
    }

    static {
      defaultInstance = new ReturnRefund(true);
      defaultInstance.initFields();
    }

    // @@protoc_insertion_point(class_scope:paymentchannels.ReturnRefund)
  }

  public interface ProvideContractOrBuilder
      extends com.google.protobuf.MessageOrBuilder {

    // required bytes tx = 1;
    /**
     * <code>required bytes tx = 1;</code>
     *
     * <pre>
     * The serialized bytes of the transaction in Satoshi format.
     * * It must be signed and completely valid and ready for broadcast (ie it includes the
     *   necessary fees) TODO: tell the client how much fee it needs
     * * Its first output must be a 2-of-2 multisig output with the first pubkey being the
     *   primary's and the second being the secondary's (ie the script must be exactly "OP_2
     *   ProvideRefund.multisig_key Initiate.multisig_key OP_2 OP_CHECKMULTISIG")
     * </pre>
     */
    boolean hasTx();
    /**
     * <code>required bytes tx = 1;</code>
     *
     * <pre>
     * The serialized bytes of the transaction in Satoshi format.
     * * It must be signed and completely valid and ready for broadcast (ie it includes the
     *   necessary fees) TODO: tell the client how much fee it needs
     * * Its first output must be a 2-of-2 multisig output with the first pubkey being the
     *   primary's and the second being the secondary's (ie the script must be exactly "OP_2
     *   ProvideRefund.multisig_key Initiate.multisig_key OP_2 OP_CHECKMULTISIG")
     * </pre>
     */
    com.google.protobuf.ByteString getTx();
  }
  /**
   * Protobuf type {@code paymentchannels.ProvideContract}
   *
   * <pre>
   * Sent from the primary to the secondary to complete initialization.
   * </pre>
   */
  public static final class ProvideContract extends
      com.google.protobuf.GeneratedMessage
      implements ProvideContractOrBuilder {
    // Use ProvideContract.newBuilder() to construct.
    private ProvideContract(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
      super(builder);
      this.unknownFields = builder.getUnknownFields();
    }
    private ProvideContract(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }

    private static final ProvideContract defaultInstance;
    public static ProvideContract getDefaultInstance() {
      return defaultInstance;
    }

    public ProvideContract getDefaultInstanceForType() {
      return defaultInstance;
    }

    private final com.google.protobuf.UnknownFieldSet unknownFields;
    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
        getUnknownFields() {
      return this.unknownFields;
    }
    private ProvideContract(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      initFields();
      int mutable_bitField0_ = 0;
      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
          com.google.protobuf.UnknownFieldSet.newBuilder();
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!parseUnknownField(input, unknownFields,
                                     extensionRegistry, tag)) {
                done = true;
              }
              break;
            }
            case 10: {
              bitField0_ |= 0x00000001;
              tx_ = input.readBytes();
              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e.getMessage()).setUnfinishedMessage(this);
      } finally {
        this.unknownFields = unknownFields.build();
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ProvideContract_descriptor;
    }

    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ProvideContract_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.bitcoin.paymentchannel.Protos.ProvideContract.class, org.bitcoin.paymentchannel.Protos.ProvideContract.Builder.class);
    }

    public static com.google.protobuf.Parser<ProvideContract> PARSER =
        new com.google.protobuf.AbstractParser<ProvideContract>() {
      public ProvideContract parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return new ProvideContract(input, extensionRegistry);
      }
    };

    @java.lang.Override
    public com.google.protobuf.Parser<ProvideContract> getParserForType() {
      return PARSER;
    }

    private int bitField0_;
    // required bytes tx = 1;
    public static final int TX_FIELD_NUMBER = 1;
    private com.google.protobuf.ByteString tx_;
    /**
     * <code>required bytes tx = 1;</code>
     *
     * <pre>
     * The serialized bytes of the transaction in Satoshi format.
     * * It must be signed and completely valid and ready for broadcast (ie it includes the
     *   necessary fees) TODO: tell the client how much fee it needs
     * * Its first output must be a 2-of-2 multisig output with the first pubkey being the
     *   primary's and the second being the secondary's (ie the script must be exactly "OP_2
     *   ProvideRefund.multisig_key Initiate.multisig_key OP_2 OP_CHECKMULTISIG")
     * </pre>
     */
    public boolean hasTx() {
      return ((bitField0_ & 0x00000001) == 0x00000001);
    }
    /**
     * <code>required bytes tx = 1;</code>
     *
     * <pre>
     * The serialized bytes of the transaction in Satoshi format.
     * * It must be signed and completely valid and ready for broadcast (ie it includes the
     *   necessary fees) TODO: tell the client how much fee it needs
     * * Its first output must be a 2-of-2 multisig output with the first pubkey being the
     *   primary's and the second being the secondary's (ie the script must be exactly "OP_2
     *   ProvideRefund.multisig_key Initiate.multisig_key OP_2 OP_CHECKMULTISIG")
     * </pre>
     */
    public com.google.protobuf.ByteString getTx() {
      return tx_;
    }

    private void initFields() {
      tx_ = com.google.protobuf.ByteString.EMPTY;
    }
    private byte memoizedIsInitialized = -1;
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized != -1) return isInitialized == 1;

      if (!hasTx()) {
        memoizedIsInitialized = 0;
        return false;
      }
      memoizedIsInitialized = 1;
      return true;
    }

    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      getSerializedSize();
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        output.writeBytes(1, tx_);
      }
      getUnknownFields().writeTo(output);
    }

    private int memoizedSerializedSize = -1;
    public int getSerializedSize() {
      int size = memoizedSerializedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        size += com.google.protobuf.CodedOutputStream
          .computeBytesSize(1, tx_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSerializedSize = size;
      return size;
    }

    private static final long serialVersionUID = 0L;
    @java.lang.Override
    protected java.lang.Object writeReplace()
        throws java.io.ObjectStreamException {
      return super.writeReplace();
    }

    public static org.bitcoin.paymentchannel.Protos.ProvideContract parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideContract parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideContract parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideContract parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideContract parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideContract parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideContract parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideContract parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideContract parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.ProvideContract parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }

    public static Builder newBuilder() { return Builder.create(); }
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder(org.bitcoin.paymentchannel.Protos.ProvideContract prototype) {
      return newBuilder().mergeFrom(prototype);
    }
    public Builder toBuilder() { return newBuilder(this); }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * Protobuf type {@code paymentchannels.ProvideContract}
     *
     * <pre>
     * Sent from the primary to the secondary to complete initialization.
     * </pre>
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessage.Builder<Builder>
       implements org.bitcoin.paymentchannel.Protos.ProvideContractOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ProvideContract_descriptor;
      }

      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ProvideContract_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                org.bitcoin.paymentchannel.Protos.ProvideContract.class, org.bitcoin.paymentchannel.Protos.ProvideContract.Builder.class);
      }

      // Construct using org.bitcoin.paymentchannel.Protos.ProvideContract.newBuilder()
      private Builder() {
        maybeForceBuilderInitialization();
      }

      private Builder(
          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
        super(parent);
        maybeForceBuilderInitialization();
      }
      private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
        }
      }
      private static Builder create() {
        return new Builder();
      }

      public Builder clear() {
        super.clear();
        tx_ = com.google.protobuf.ByteString.EMPTY;
        bitField0_ = (bitField0_ & ~0x00000001);
        return this;
      }

      public Builder clone() {
        return create().mergeFrom(buildPartial());
      }

      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_ProvideContract_descriptor;
      }

      public org.bitcoin.paymentchannel.Protos.ProvideContract getDefaultInstanceForType() {
        return org.bitcoin.paymentchannel.Protos.ProvideContract.getDefaultInstance();
      }

      public org.bitcoin.paymentchannel.Protos.ProvideContract build() {
        org.bitcoin.paymentchannel.Protos.ProvideContract result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      public org.bitcoin.paymentchannel.Protos.ProvideContract buildPartial() {
        org.bitcoin.paymentchannel.Protos.ProvideContract result = new org.bitcoin.paymentchannel.Protos.ProvideContract(this);
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
          to_bitField0_ |= 0x00000001;
        }
        result.tx_ = tx_;
        result.bitField0_ = to_bitField0_;
        onBuilt();
        return result;
      }

      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.bitcoin.paymentchannel.Protos.ProvideContract) {
          return mergeFrom((org.bitcoin.paymentchannel.Protos.ProvideContract)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(org.bitcoin.paymentchannel.Protos.ProvideContract other) {
        if (other == org.bitcoin.paymentchannel.Protos.ProvideContract.getDefaultInstance()) return this;
        if (other.hasTx()) {
          setTx(other.getTx());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        return this;
      }

      public final boolean isInitialized() {
        if (!hasTx()) {
          
          return false;
        }
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.bitcoin.paymentchannel.Protos.ProvideContract parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.bitcoin.paymentchannel.Protos.ProvideContract) e.getUnfinishedMessage();
          throw e;
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }
      private int bitField0_;

      // required bytes tx = 1;
      private com.google.protobuf.ByteString tx_ = com.google.protobuf.ByteString.EMPTY;
      /**
       * <code>required bytes tx = 1;</code>
       *
       * <pre>
       * The serialized bytes of the transaction in Satoshi format.
       * * It must be signed and completely valid and ready for broadcast (ie it includes the
       *   necessary fees) TODO: tell the client how much fee it needs
       * * Its first output must be a 2-of-2 multisig output with the first pubkey being the
       *   primary's and the second being the secondary's (ie the script must be exactly "OP_2
       *   ProvideRefund.multisig_key Initiate.multisig_key OP_2 OP_CHECKMULTISIG")
       * </pre>
       */
      public boolean hasTx() {
        return ((bitField0_ & 0x00000001) == 0x00000001);
      }
      /**
       * <code>required bytes tx = 1;</code>
       *
       * <pre>
       * The serialized bytes of the transaction in Satoshi format.
       * * It must be signed and completely valid and ready for broadcast (ie it includes the
       *   necessary fees) TODO: tell the client how much fee it needs
       * * Its first output must be a 2-of-2 multisig output with the first pubkey being the
       *   primary's and the second being the secondary's (ie the script must be exactly "OP_2
       *   ProvideRefund.multisig_key Initiate.multisig_key OP_2 OP_CHECKMULTISIG")
       * </pre>
       */
      public com.google.protobuf.ByteString getTx() {
        return tx_;
      }
      /**
       * <code>required bytes tx = 1;</code>
       *
       * <pre>
       * The serialized bytes of the transaction in Satoshi format.
       * * It must be signed and completely valid and ready for broadcast (ie it includes the
       *   necessary fees) TODO: tell the client how much fee it needs
       * * Its first output must be a 2-of-2 multisig output with the first pubkey being the
       *   primary's and the second being the secondary's (ie the script must be exactly "OP_2
       *   ProvideRefund.multisig_key Initiate.multisig_key OP_2 OP_CHECKMULTISIG")
       * </pre>
       */
      public Builder setTx(com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000001;
        tx_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required bytes tx = 1;</code>
       *
       * <pre>
       * The serialized bytes of the transaction in Satoshi format.
       * * It must be signed and completely valid and ready for broadcast (ie it includes the
       *   necessary fees) TODO: tell the client how much fee it needs
       * * Its first output must be a 2-of-2 multisig output with the first pubkey being the
       *   primary's and the second being the secondary's (ie the script must be exactly "OP_2
       *   ProvideRefund.multisig_key Initiate.multisig_key OP_2 OP_CHECKMULTISIG")
       * </pre>
       */
      public Builder clearTx() {
        bitField0_ = (bitField0_ & ~0x00000001);
        tx_ = getDefaultInstance().getTx();
        onChanged();
        return this;
      }

      // @@protoc_insertion_point(builder_scope:paymentchannels.ProvideContract)
    }

    static {
      defaultInstance = new ProvideContract(true);
      defaultInstance.initFields();
    }

    // @@protoc_insertion_point(class_scope:paymentchannels.ProvideContract)
  }

  public interface UpdatePaymentOrBuilder
      extends com.google.protobuf.MessageOrBuilder {

    // required uint64 client_change_value = 1;
    /**
     * <code>required uint64 client_change_value = 1;</code>
     *
     * <pre>
     * The value which is sent back to the primary.  The rest of the multisig output is left for
     * the secondary to do with as they wish.
     * </pre>
     */
    boolean hasClientChangeValue();
    /**
     * <code>required uint64 client_change_value = 1;</code>
     *
     * <pre>
     * The value which is sent back to the primary.  The rest of the multisig output is left for
     * the secondary to do with as they wish.
     * </pre>
     */
    long getClientChangeValue();

    // required bytes signature = 2;
    /**
     * <code>required bytes signature = 2;</code>
     *
     * <pre>
     * A SIGHASH_SINGLE|SIGHASH_ANYONECANPAY signature (including the postfix type byte) which
     * spends the primary's part of the multisig contract's output.  This signature only covers
     * the primary's refund output and thus the secondary is free to do what they wish with their
     * part of the multisig output.
     * </pre>
     */
    boolean hasSignature();
    /**
     * <code>required bytes signature = 2;</code>
     *
     * <pre>
     * A SIGHASH_SINGLE|SIGHASH_ANYONECANPAY signature (including the postfix type byte) which
     * spends the primary's part of the multisig contract's output.  This signature only covers
     * the primary's refund output and thus the secondary is free to do what they wish with their
     * part of the multisig output.
     * </pre>
     */
    com.google.protobuf.ByteString getSignature();
  }
  /**
   * Protobuf type {@code paymentchannels.UpdatePayment}
   *
   * <pre>
   * This message can only be used by the primary after it has received a CHANNEL_OPEN message. It
   * creates a new payment transaction. Note that we don't resubmit the entire TX, this is to avoid
   * (re)parsing bugs and overhead. The payment transaction is created by the primary by:
   * * Adding an input which spends the multisig contract
   * * Setting this input's scriptSig to the given signature and a new signature created by the
   *   primary (the primary should ensure the signature provided correctly spends the multisig
   *   contract)
   * * Adding an output who's scriptPubKey is the same as the refund output (the only output) in
   *   the refund transaction
   * * Setting this output's value to client_change_value (which must be lower than the most recent
   *   client_change_value and lower than the multisig contract's output value)
   * * Adding any number of additional outputs as desired (leaving sufficient fee, if necessary)
   * * Adding any number of additional inputs as desired (eg to add more fee)
   * </pre>
   */
  public static final class UpdatePayment extends
      com.google.protobuf.GeneratedMessage
      implements UpdatePaymentOrBuilder {
    // Use UpdatePayment.newBuilder() to construct.
    private UpdatePayment(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
      super(builder);
      this.unknownFields = builder.getUnknownFields();
    }
    private UpdatePayment(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }

    private static final UpdatePayment defaultInstance;
    public static UpdatePayment getDefaultInstance() {
      return defaultInstance;
    }

    public UpdatePayment getDefaultInstanceForType() {
      return defaultInstance;
    }

    private final com.google.protobuf.UnknownFieldSet unknownFields;
    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
        getUnknownFields() {
      return this.unknownFields;
    }
    private UpdatePayment(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      initFields();
      int mutable_bitField0_ = 0;
      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
          com.google.protobuf.UnknownFieldSet.newBuilder();
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!parseUnknownField(input, unknownFields,
                                     extensionRegistry, tag)) {
                done = true;
              }
              break;
            }
            case 8: {
              bitField0_ |= 0x00000001;
              clientChangeValue_ = input.readUInt64();
              break;
            }
            case 18: {
              bitField0_ |= 0x00000002;
              signature_ = input.readBytes();
              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e.getMessage()).setUnfinishedMessage(this);
      } finally {
        this.unknownFields = unknownFields.build();
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_UpdatePayment_descriptor;
    }

    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_UpdatePayment_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.bitcoin.paymentchannel.Protos.UpdatePayment.class, org.bitcoin.paymentchannel.Protos.UpdatePayment.Builder.class);
    }

    public static com.google.protobuf.Parser<UpdatePayment> PARSER =
        new com.google.protobuf.AbstractParser<UpdatePayment>() {
      public UpdatePayment parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return new UpdatePayment(input, extensionRegistry);
      }
    };

    @java.lang.Override
    public com.google.protobuf.Parser<UpdatePayment> getParserForType() {
      return PARSER;
    }

    private int bitField0_;
    // required uint64 client_change_value = 1;
    public static final int CLIENT_CHANGE_VALUE_FIELD_NUMBER = 1;
    private long clientChangeValue_;
    /**
     * <code>required uint64 client_change_value = 1;</code>
     *
     * <pre>
     * The value which is sent back to the primary.  The rest of the multisig output is left for
     * the secondary to do with as they wish.
     * </pre>
     */
    public boolean hasClientChangeValue() {
      return ((bitField0_ & 0x00000001) == 0x00000001);
    }
    /**
     * <code>required uint64 client_change_value = 1;</code>
     *
     * <pre>
     * The value which is sent back to the primary.  The rest of the multisig output is left for
     * the secondary to do with as they wish.
     * </pre>
     */
    public long getClientChangeValue() {
      return clientChangeValue_;
    }

    // required bytes signature = 2;
    public static final int SIGNATURE_FIELD_NUMBER = 2;
    private com.google.protobuf.ByteString signature_;
    /**
     * <code>required bytes signature = 2;</code>
     *
     * <pre>
     * A SIGHASH_SINGLE|SIGHASH_ANYONECANPAY signature (including the postfix type byte) which
     * spends the primary's part of the multisig contract's output.  This signature only covers
     * the primary's refund output and thus the secondary is free to do what they wish with their
     * part of the multisig output.
     * </pre>
     */
    public boolean hasSignature() {
      return ((bitField0_ & 0x00000002) == 0x00000002);
    }
    /**
     * <code>required bytes signature = 2;</code>
     *
     * <pre>
     * A SIGHASH_SINGLE|SIGHASH_ANYONECANPAY signature (including the postfix type byte) which
     * spends the primary's part of the multisig contract's output.  This signature only covers
     * the primary's refund output and thus the secondary is free to do what they wish with their
     * part of the multisig output.
     * </pre>
     */
    public com.google.protobuf.ByteString getSignature() {
      return signature_;
    }

    private void initFields() {
      clientChangeValue_ = 0L;
      signature_ = com.google.protobuf.ByteString.EMPTY;
    }
    private byte memoizedIsInitialized = -1;
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized != -1) return isInitialized == 1;

      if (!hasClientChangeValue()) {
        memoizedIsInitialized = 0;
        return false;
      }
      if (!hasSignature()) {
        memoizedIsInitialized = 0;
        return false;
      }
      memoizedIsInitialized = 1;
      return true;
    }

    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      getSerializedSize();
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        output.writeUInt64(1, clientChangeValue_);
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        output.writeBytes(2, signature_);
      }
      getUnknownFields().writeTo(output);
    }

    private int memoizedSerializedSize = -1;
    public int getSerializedSize() {
      int size = memoizedSerializedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        size += com.google.protobuf.CodedOutputStream
          .computeUInt64Size(1, clientChangeValue_);
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        size += com.google.protobuf.CodedOutputStream
          .computeBytesSize(2, signature_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSerializedSize = size;
      return size;
    }

    private static final long serialVersionUID = 0L;
    @java.lang.Override
    protected java.lang.Object writeReplace()
        throws java.io.ObjectStreamException {
      return super.writeReplace();
    }

    public static org.bitcoin.paymentchannel.Protos.UpdatePayment parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.UpdatePayment parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.UpdatePayment parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.UpdatePayment parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.UpdatePayment parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.UpdatePayment parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.UpdatePayment parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.UpdatePayment parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.UpdatePayment parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.UpdatePayment parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }

    public static Builder newBuilder() { return Builder.create(); }
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder(org.bitcoin.paymentchannel.Protos.UpdatePayment prototype) {
      return newBuilder().mergeFrom(prototype);
    }
    public Builder toBuilder() { return newBuilder(this); }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * Protobuf type {@code paymentchannels.UpdatePayment}
     *
     * <pre>
     * This message can only be used by the primary after it has received a CHANNEL_OPEN message. It
     * creates a new payment transaction. Note that we don't resubmit the entire TX, this is to avoid
     * (re)parsing bugs and overhead. The payment transaction is created by the primary by:
     * * Adding an input which spends the multisig contract
     * * Setting this input's scriptSig to the given signature and a new signature created by the
     *   primary (the primary should ensure the signature provided correctly spends the multisig
     *   contract)
     * * Adding an output who's scriptPubKey is the same as the refund output (the only output) in
     *   the refund transaction
     * * Setting this output's value to client_change_value (which must be lower than the most recent
     *   client_change_value and lower than the multisig contract's output value)
     * * Adding any number of additional outputs as desired (leaving sufficient fee, if necessary)
     * * Adding any number of additional inputs as desired (eg to add more fee)
     * </pre>
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessage.Builder<Builder>
       implements org.bitcoin.paymentchannel.Protos.UpdatePaymentOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_UpdatePayment_descriptor;
      }

      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_UpdatePayment_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                org.bitcoin.paymentchannel.Protos.UpdatePayment.class, org.bitcoin.paymentchannel.Protos.UpdatePayment.Builder.class);
      }

      // Construct using org.bitcoin.paymentchannel.Protos.UpdatePayment.newBuilder()
      private Builder() {
        maybeForceBuilderInitialization();
      }

      private Builder(
          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
        super(parent);
        maybeForceBuilderInitialization();
      }
      private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
        }
      }
      private static Builder create() {
        return new Builder();
      }

      public Builder clear() {
        super.clear();
        clientChangeValue_ = 0L;
        bitField0_ = (bitField0_ & ~0x00000001);
        signature_ = com.google.protobuf.ByteString.EMPTY;
        bitField0_ = (bitField0_ & ~0x00000002);
        return this;
      }

      public Builder clone() {
        return create().mergeFrom(buildPartial());
      }

      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_UpdatePayment_descriptor;
      }

      public org.bitcoin.paymentchannel.Protos.UpdatePayment getDefaultInstanceForType() {
        return org.bitcoin.paymentchannel.Protos.UpdatePayment.getDefaultInstance();
      }

      public org.bitcoin.paymentchannel.Protos.UpdatePayment build() {
        org.bitcoin.paymentchannel.Protos.UpdatePayment result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      public org.bitcoin.paymentchannel.Protos.UpdatePayment buildPartial() {
        org.bitcoin.paymentchannel.Protos.UpdatePayment result = new org.bitcoin.paymentchannel.Protos.UpdatePayment(this);
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
          to_bitField0_ |= 0x00000001;
        }
        result.clientChangeValue_ = clientChangeValue_;
        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
          to_bitField0_ |= 0x00000002;
        }
        result.signature_ = signature_;
        result.bitField0_ = to_bitField0_;
        onBuilt();
        return result;
      }

      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.bitcoin.paymentchannel.Protos.UpdatePayment) {
          return mergeFrom((org.bitcoin.paymentchannel.Protos.UpdatePayment)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(org.bitcoin.paymentchannel.Protos.UpdatePayment other) {
        if (other == org.bitcoin.paymentchannel.Protos.UpdatePayment.getDefaultInstance()) return this;
        if (other.hasClientChangeValue()) {
          setClientChangeValue(other.getClientChangeValue());
        }
        if (other.hasSignature()) {
          setSignature(other.getSignature());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        return this;
      }

      public final boolean isInitialized() {
        if (!hasClientChangeValue()) {
          
          return false;
        }
        if (!hasSignature()) {
          
          return false;
        }
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.bitcoin.paymentchannel.Protos.UpdatePayment parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.bitcoin.paymentchannel.Protos.UpdatePayment) e.getUnfinishedMessage();
          throw e;
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }
      private int bitField0_;

      // required uint64 client_change_value = 1;
      private long clientChangeValue_ ;
      /**
       * <code>required uint64 client_change_value = 1;</code>
       *
       * <pre>
       * The value which is sent back to the primary.  The rest of the multisig output is left for
       * the secondary to do with as they wish.
       * </pre>
       */
      public boolean hasClientChangeValue() {
        return ((bitField0_ & 0x00000001) == 0x00000001);
      }
      /**
       * <code>required uint64 client_change_value = 1;</code>
       *
       * <pre>
       * The value which is sent back to the primary.  The rest of the multisig output is left for
       * the secondary to do with as they wish.
       * </pre>
       */
      public long getClientChangeValue() {
        return clientChangeValue_;
      }
      /**
       * <code>required uint64 client_change_value = 1;</code>
       *
       * <pre>
       * The value which is sent back to the primary.  The rest of the multisig output is left for
       * the secondary to do with as they wish.
       * </pre>
       */
      public Builder setClientChangeValue(long value) {
        bitField0_ |= 0x00000001;
        clientChangeValue_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required uint64 client_change_value = 1;</code>
       *
       * <pre>
       * The value which is sent back to the primary.  The rest of the multisig output is left for
       * the secondary to do with as they wish.
       * </pre>
       */
      public Builder clearClientChangeValue() {
        bitField0_ = (bitField0_ & ~0x00000001);
        clientChangeValue_ = 0L;
        onChanged();
        return this;
      }

      // required bytes signature = 2;
      private com.google.protobuf.ByteString signature_ = com.google.protobuf.ByteString.EMPTY;
      /**
       * <code>required bytes signature = 2;</code>
       *
       * <pre>
       * A SIGHASH_SINGLE|SIGHASH_ANYONECANPAY signature (including the postfix type byte) which
       * spends the primary's part of the multisig contract's output.  This signature only covers
       * the primary's refund output and thus the secondary is free to do what they wish with their
       * part of the multisig output.
       * </pre>
       */
      public boolean hasSignature() {
        return ((bitField0_ & 0x00000002) == 0x00000002);
      }
      /**
       * <code>required bytes signature = 2;</code>
       *
       * <pre>
       * A SIGHASH_SINGLE|SIGHASH_ANYONECANPAY signature (including the postfix type byte) which
       * spends the primary's part of the multisig contract's output.  This signature only covers
       * the primary's refund output and thus the secondary is free to do what they wish with their
       * part of the multisig output.
       * </pre>
       */
      public com.google.protobuf.ByteString getSignature() {
        return signature_;
      }
      /**
       * <code>required bytes signature = 2;</code>
       *
       * <pre>
       * A SIGHASH_SINGLE|SIGHASH_ANYONECANPAY signature (including the postfix type byte) which
       * spends the primary's part of the multisig contract's output.  This signature only covers
       * the primary's refund output and thus the secondary is free to do what they wish with their
       * part of the multisig output.
       * </pre>
       */
      public Builder setSignature(com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000002;
        signature_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required bytes signature = 2;</code>
       *
       * <pre>
       * A SIGHASH_SINGLE|SIGHASH_ANYONECANPAY signature (including the postfix type byte) which
       * spends the primary's part of the multisig contract's output.  This signature only covers
       * the primary's refund output and thus the secondary is free to do what they wish with their
       * part of the multisig output.
       * </pre>
       */
      public Builder clearSignature() {
        bitField0_ = (bitField0_ & ~0x00000002);
        signature_ = getDefaultInstance().getSignature();
        onChanged();
        return this;
      }

      // @@protoc_insertion_point(builder_scope:paymentchannels.UpdatePayment)
    }

    static {
      defaultInstance = new UpdatePayment(true);
      defaultInstance.initFields();
    }

    // @@protoc_insertion_point(class_scope:paymentchannels.UpdatePayment)
  }

  public interface CloseOrBuilder
      extends com.google.protobuf.MessageOrBuilder {

    // required bytes tx = 3;
    /**
     * <code>required bytes tx = 3;</code>
     *
     * <pre>
     * A copy of the fully signed final contract that closes the channel. The client can verify
     * the transaction is correct and then commit it to their wallet.
     * </pre>
     */
    boolean hasTx();
    /**
     * <code>required bytes tx = 3;</code>
     *
     * <pre>
     * A copy of the fully signed final contract that closes the channel. The client can verify
     * the transaction is correct and then commit it to their wallet.
     * </pre>
     */
    com.google.protobuf.ByteString getTx();
  }
  /**
   * Protobuf type {@code paymentchannels.Close}
   */
  public static final class Close extends
      com.google.protobuf.GeneratedMessage
      implements CloseOrBuilder {
    // Use Close.newBuilder() to construct.
    private Close(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
      super(builder);
      this.unknownFields = builder.getUnknownFields();
    }
    private Close(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }

    private static final Close defaultInstance;
    public static Close getDefaultInstance() {
      return defaultInstance;
    }

    public Close getDefaultInstanceForType() {
      return defaultInstance;
    }

    private final com.google.protobuf.UnknownFieldSet unknownFields;
    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
        getUnknownFields() {
      return this.unknownFields;
    }
    private Close(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      initFields();
      int mutable_bitField0_ = 0;
      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
          com.google.protobuf.UnknownFieldSet.newBuilder();
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!parseUnknownField(input, unknownFields,
                                     extensionRegistry, tag)) {
                done = true;
              }
              break;
            }
            case 26: {
              bitField0_ |= 0x00000001;
              tx_ = input.readBytes();
              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e.getMessage()).setUnfinishedMessage(this);
      } finally {
        this.unknownFields = unknownFields.build();
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Close_descriptor;
    }

    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Close_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.bitcoin.paymentchannel.Protos.Close.class, org.bitcoin.paymentchannel.Protos.Close.Builder.class);
    }

    public static com.google.protobuf.Parser<Close> PARSER =
        new com.google.protobuf.AbstractParser<Close>() {
      public Close parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return new Close(input, extensionRegistry);
      }
    };

    @java.lang.Override
    public com.google.protobuf.Parser<Close> getParserForType() {
      return PARSER;
    }

    private int bitField0_;
    // required bytes tx = 3;
    public static final int TX_FIELD_NUMBER = 3;
    private com.google.protobuf.ByteString tx_;
    /**
     * <code>required bytes tx = 3;</code>
     *
     * <pre>
     * A copy of the fully signed final contract that closes the channel. The client can verify
     * the transaction is correct and then commit it to their wallet.
     * </pre>
     */
    public boolean hasTx() {
      return ((bitField0_ & 0x00000001) == 0x00000001);
    }
    /**
     * <code>required bytes tx = 3;</code>
     *
     * <pre>
     * A copy of the fully signed final contract that closes the channel. The client can verify
     * the transaction is correct and then commit it to their wallet.
     * </pre>
     */
    public com.google.protobuf.ByteString getTx() {
      return tx_;
    }

    private void initFields() {
      tx_ = com.google.protobuf.ByteString.EMPTY;
    }
    private byte memoizedIsInitialized = -1;
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized != -1) return isInitialized == 1;

      if (!hasTx()) {
        memoizedIsInitialized = 0;
        return false;
      }
      memoizedIsInitialized = 1;
      return true;
    }

    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      getSerializedSize();
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        output.writeBytes(3, tx_);
      }
      getUnknownFields().writeTo(output);
    }

    private int memoizedSerializedSize = -1;
    public int getSerializedSize() {
      int size = memoizedSerializedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        size += com.google.protobuf.CodedOutputStream
          .computeBytesSize(3, tx_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSerializedSize = size;
      return size;
    }

    private static final long serialVersionUID = 0L;
    @java.lang.Override
    protected java.lang.Object writeReplace()
        throws java.io.ObjectStreamException {
      return super.writeReplace();
    }

    public static org.bitcoin.paymentchannel.Protos.Close parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.Close parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.Close parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.Close parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.Close parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.Close parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.Close parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.Close parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.Close parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.Close parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }

    public static Builder newBuilder() { return Builder.create(); }
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder(org.bitcoin.paymentchannel.Protos.Close prototype) {
      return newBuilder().mergeFrom(prototype);
    }
    public Builder toBuilder() { return newBuilder(this); }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * Protobuf type {@code paymentchannels.Close}
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessage.Builder<Builder>
       implements org.bitcoin.paymentchannel.Protos.CloseOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Close_descriptor;
      }

      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Close_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                org.bitcoin.paymentchannel.Protos.Close.class, org.bitcoin.paymentchannel.Protos.Close.Builder.class);
      }

      // Construct using org.bitcoin.paymentchannel.Protos.Close.newBuilder()
      private Builder() {
        maybeForceBuilderInitialization();
      }

      private Builder(
          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
        super(parent);
        maybeForceBuilderInitialization();
      }
      private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
        }
      }
      private static Builder create() {
        return new Builder();
      }

      public Builder clear() {
        super.clear();
        tx_ = com.google.protobuf.ByteString.EMPTY;
        bitField0_ = (bitField0_ & ~0x00000001);
        return this;
      }

      public Builder clone() {
        return create().mergeFrom(buildPartial());
      }

      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Close_descriptor;
      }

      public org.bitcoin.paymentchannel.Protos.Close getDefaultInstanceForType() {
        return org.bitcoin.paymentchannel.Protos.Close.getDefaultInstance();
      }

      public org.bitcoin.paymentchannel.Protos.Close build() {
        org.bitcoin.paymentchannel.Protos.Close result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      public org.bitcoin.paymentchannel.Protos.Close buildPartial() {
        org.bitcoin.paymentchannel.Protos.Close result = new org.bitcoin.paymentchannel.Protos.Close(this);
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
          to_bitField0_ |= 0x00000001;
        }
        result.tx_ = tx_;
        result.bitField0_ = to_bitField0_;
        onBuilt();
        return result;
      }

      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.bitcoin.paymentchannel.Protos.Close) {
          return mergeFrom((org.bitcoin.paymentchannel.Protos.Close)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(org.bitcoin.paymentchannel.Protos.Close other) {
        if (other == org.bitcoin.paymentchannel.Protos.Close.getDefaultInstance()) return this;
        if (other.hasTx()) {
          setTx(other.getTx());
        }
        this.mergeUnknownFields(other.getUnknownFields());
        return this;
      }

      public final boolean isInitialized() {
        if (!hasTx()) {
          
          return false;
        }
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.bitcoin.paymentchannel.Protos.Close parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.bitcoin.paymentchannel.Protos.Close) e.getUnfinishedMessage();
          throw e;
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }
      private int bitField0_;

      // required bytes tx = 3;
      private com.google.protobuf.ByteString tx_ = com.google.protobuf.ByteString.EMPTY;
      /**
       * <code>required bytes tx = 3;</code>
       *
       * <pre>
       * A copy of the fully signed final contract that closes the channel. The client can verify
       * the transaction is correct and then commit it to their wallet.
       * </pre>
       */
      public boolean hasTx() {
        return ((bitField0_ & 0x00000001) == 0x00000001);
      }
      /**
       * <code>required bytes tx = 3;</code>
       *
       * <pre>
       * A copy of the fully signed final contract that closes the channel. The client can verify
       * the transaction is correct and then commit it to their wallet.
       * </pre>
       */
      public com.google.protobuf.ByteString getTx() {
        return tx_;
      }
      /**
       * <code>required bytes tx = 3;</code>
       *
       * <pre>
       * A copy of the fully signed final contract that closes the channel. The client can verify
       * the transaction is correct and then commit it to their wallet.
       * </pre>
       */
      public Builder setTx(com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000001;
        tx_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>required bytes tx = 3;</code>
       *
       * <pre>
       * A copy of the fully signed final contract that closes the channel. The client can verify
       * the transaction is correct and then commit it to their wallet.
       * </pre>
       */
      public Builder clearTx() {
        bitField0_ = (bitField0_ & ~0x00000001);
        tx_ = getDefaultInstance().getTx();
        onChanged();
        return this;
      }

      // @@protoc_insertion_point(builder_scope:paymentchannels.Close)
    }

    static {
      defaultInstance = new Close(true);
      defaultInstance.initFields();
    }

    // @@protoc_insertion_point(class_scope:paymentchannels.Close)
  }

  public interface ErrorOrBuilder
      extends com.google.protobuf.MessageOrBuilder {

    // optional .paymentchannels.Error.ErrorCode code = 1 [default = OTHER];
    /**
     * <code>optional .paymentchannels.Error.ErrorCode code = 1 [default = OTHER];</code>
     */
    boolean hasCode();
    /**
     * <code>optional .paymentchannels.Error.ErrorCode code = 1 [default = OTHER];</code>
     */
    org.bitcoin.paymentchannel.Protos.Error.ErrorCode getCode();

    // optional string explanation = 2;
    /**
     * <code>optional string explanation = 2;</code>
     *
     * <pre>
     * NOT SAFE FOR HTML WITHOUT ESCAPING
     * </pre>
     */
    boolean hasExplanation();
    /**
     * <code>optional string explanation = 2;</code>
     *
     * <pre>
     * NOT SAFE FOR HTML WITHOUT ESCAPING
     * </pre>
     */
    java.lang.String getExplanation();
    /**
     * <code>optional string explanation = 2;</code>
     *
     * <pre>
     * NOT SAFE FOR HTML WITHOUT ESCAPING
     * </pre>
     */
    com.google.protobuf.ByteString
        getExplanationBytes();
  }
  /**
   * Protobuf type {@code paymentchannels.Error}
   *
   * <pre>
   * An Error can be sent by either party at any time
   * Both parties should make an effort to send either an ERROR or a CLOSE immediately before
   * closing the socket (unless they just received an ERROR or a CLOSE)
   * </pre>
   */
  public static final class Error extends
      com.google.protobuf.GeneratedMessage
      implements ErrorOrBuilder {
    // Use Error.newBuilder() to construct.
    private Error(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
      super(builder);
      this.unknownFields = builder.getUnknownFields();
    }
    private Error(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }

    private static final Error defaultInstance;
    public static Error getDefaultInstance() {
      return defaultInstance;
    }

    public Error getDefaultInstanceForType() {
      return defaultInstance;
    }

    private final com.google.protobuf.UnknownFieldSet unknownFields;
    @java.lang.Override
    public final com.google.protobuf.UnknownFieldSet
        getUnknownFields() {
      return this.unknownFields;
    }
    private Error(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      initFields();
      int mutable_bitField0_ = 0;
      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
          com.google.protobuf.UnknownFieldSet.newBuilder();
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            default: {
              if (!parseUnknownField(input, unknownFields,
                                     extensionRegistry, tag)) {
                done = true;
              }
              break;
            }
            case 8: {
              int rawValue = input.readEnum();
              org.bitcoin.paymentchannel.Protos.Error.ErrorCode value = org.bitcoin.paymentchannel.Protos.Error.ErrorCode.valueOf(rawValue);
              if (value == null) {
                unknownFields.mergeVarintField(1, rawValue);
              } else {
                bitField0_ |= 0x00000001;
                code_ = value;
              }
              break;
            }
            case 18: {
              bitField0_ |= 0x00000002;
              explanation_ = input.readBytes();
              break;
            }
          }
        }
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.setUnfinishedMessage(this);
      } catch (java.io.IOException e) {
        throw new com.google.protobuf.InvalidProtocolBufferException(
            e.getMessage()).setUnfinishedMessage(this);
      } finally {
        this.unknownFields = unknownFields.build();
        makeExtensionsImmutable();
      }
    }
    public static final com.google.protobuf.Descriptors.Descriptor
        getDescriptor() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Error_descriptor;
    }

    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
        internalGetFieldAccessorTable() {
      return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Error_fieldAccessorTable
          .ensureFieldAccessorsInitialized(
              org.bitcoin.paymentchannel.Protos.Error.class, org.bitcoin.paymentchannel.Protos.Error.Builder.class);
    }

    public static com.google.protobuf.Parser<Error> PARSER =
        new com.google.protobuf.AbstractParser<Error>() {
      public Error parsePartialFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws com.google.protobuf.InvalidProtocolBufferException {
        return new Error(input, extensionRegistry);
      }
    };

    @java.lang.Override
    public com.google.protobuf.Parser<Error> getParserForType() {
      return PARSER;
    }

    /**
     * Protobuf enum {@code paymentchannels.Error.ErrorCode}
     */
    public enum ErrorCode
        implements com.google.protobuf.ProtocolMessageEnum {
      /**
       * <code>TIMEOUT = 1;</code>
       *
       * <pre>
       * Protocol timeout occurred (one party hung).
       * </pre>
       */
      TIMEOUT(0, 1),
      /**
       * <code>SYNTAX_ERROR = 2;</code>
       *
       * <pre>
       * Generic error indicating some message was not properly
       * </pre>
       */
      SYNTAX_ERROR(1, 2),
      /**
       * <code>NO_ACCEPTABLE_VERSION = 3;</code>
       *
       * <pre>
       * formatted or was out of order.
       * </pre>
       */
      NO_ACCEPTABLE_VERSION(2, 3),
      /**
       * <code>BAD_TRANSACTION = 4;</code>
       *
       * <pre>
       * A provided transaction was not in the proper structure
       * </pre>
       */
      BAD_TRANSACTION(3, 4),
      /**
       * <code>TIME_WINDOW_TOO_LARGE = 5;</code>
       *
       * <pre>
       * (wrong inputs/outputs, sequence, lock time, signature,
       * etc)
       * </pre>
       */
      TIME_WINDOW_TOO_LARGE(4, 5),
      /**
       * <code>CHANNEL_VALUE_TOO_LARGE = 6;</code>
       *
       * <pre>
       * for the primary
       * </pre>
       */
      CHANNEL_VALUE_TOO_LARGE(5, 6),
      /**
       * <code>OTHER = 7;</code>
       */
      OTHER(6, 7),
      ;

      /**
       * <code>TIMEOUT = 1;</code>
       *
       * <pre>
       * Protocol timeout occurred (one party hung).
       * </pre>
       */
      public static final int TIMEOUT_VALUE = 1;
      /**
       * <code>SYNTAX_ERROR = 2;</code>
       *
       * <pre>
       * Generic error indicating some message was not properly
       * </pre>
       */
      public static final int SYNTAX_ERROR_VALUE = 2;
      /**
       * <code>NO_ACCEPTABLE_VERSION = 3;</code>
       *
       * <pre>
       * formatted or was out of order.
       * </pre>
       */
      public static final int NO_ACCEPTABLE_VERSION_VALUE = 3;
      /**
       * <code>BAD_TRANSACTION = 4;</code>
       *
       * <pre>
       * A provided transaction was not in the proper structure
       * </pre>
       */
      public static final int BAD_TRANSACTION_VALUE = 4;
      /**
       * <code>TIME_WINDOW_TOO_LARGE = 5;</code>
       *
       * <pre>
       * (wrong inputs/outputs, sequence, lock time, signature,
       * etc)
       * </pre>
       */
      public static final int TIME_WINDOW_TOO_LARGE_VALUE = 5;
      /**
       * <code>CHANNEL_VALUE_TOO_LARGE = 6;</code>
       *
       * <pre>
       * for the primary
       * </pre>
       */
      public static final int CHANNEL_VALUE_TOO_LARGE_VALUE = 6;
      /**
       * <code>OTHER = 7;</code>
       */
      public static final int OTHER_VALUE = 7;


      public final int getNumber() { return value; }

      public static ErrorCode valueOf(int value) {
        switch (value) {
          case 1: return TIMEOUT;
          case 2: return SYNTAX_ERROR;
          case 3: return NO_ACCEPTABLE_VERSION;
          case 4: return BAD_TRANSACTION;
          case 5: return TIME_WINDOW_TOO_LARGE;
          case 6: return CHANNEL_VALUE_TOO_LARGE;
          case 7: return OTHER;
          default: return null;
        }
      }

      public static com.google.protobuf.Internal.EnumLiteMap<ErrorCode>
          internalGetValueMap() {
        return internalValueMap;
      }
      private static com.google.protobuf.Internal.EnumLiteMap<ErrorCode>
          internalValueMap =
            new com.google.protobuf.Internal.EnumLiteMap<ErrorCode>() {
              public ErrorCode findValueByNumber(int number) {
                return ErrorCode.valueOf(number);
              }
            };

      public final com.google.protobuf.Descriptors.EnumValueDescriptor
          getValueDescriptor() {
        return getDescriptor().getValues().get(index);
      }
      public final com.google.protobuf.Descriptors.EnumDescriptor
          getDescriptorForType() {
        return getDescriptor();
      }
      public static final com.google.protobuf.Descriptors.EnumDescriptor
          getDescriptor() {
        return org.bitcoin.paymentchannel.Protos.Error.getDescriptor().getEnumTypes().get(0);
      }

      private static final ErrorCode[] VALUES = values();

      public static ErrorCode valueOf(
          com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
        if (desc.getType() != getDescriptor()) {
          throw new java.lang.IllegalArgumentException(
            "EnumValueDescriptor is not for this type.");
        }
        return VALUES[desc.getIndex()];
      }

      private final int index;
      private final int value;

      private ErrorCode(int index, int value) {
        this.index = index;
        this.value = value;
      }

      // @@protoc_insertion_point(enum_scope:paymentchannels.Error.ErrorCode)
    }

    private int bitField0_;
    // optional .paymentchannels.Error.ErrorCode code = 1 [default = OTHER];
    public static final int CODE_FIELD_NUMBER = 1;
    private org.bitcoin.paymentchannel.Protos.Error.ErrorCode code_;
    /**
     * <code>optional .paymentchannels.Error.ErrorCode code = 1 [default = OTHER];</code>
     */
    public boolean hasCode() {
      return ((bitField0_ & 0x00000001) == 0x00000001);
    }
    /**
     * <code>optional .paymentchannels.Error.ErrorCode code = 1 [default = OTHER];</code>
     */
    public org.bitcoin.paymentchannel.Protos.Error.ErrorCode getCode() {
      return code_;
    }

    // optional string explanation = 2;
    public static final int EXPLANATION_FIELD_NUMBER = 2;
    private java.lang.Object explanation_;
    /**
     * <code>optional string explanation = 2;</code>
     *
     * <pre>
     * NOT SAFE FOR HTML WITHOUT ESCAPING
     * </pre>
     */
    public boolean hasExplanation() {
      return ((bitField0_ & 0x00000002) == 0x00000002);
    }
    /**
     * <code>optional string explanation = 2;</code>
     *
     * <pre>
     * NOT SAFE FOR HTML WITHOUT ESCAPING
     * </pre>
     */
    public java.lang.String getExplanation() {
      java.lang.Object ref = explanation_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = 
            (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        if (bs.isValidUtf8()) {
          explanation_ = s;
        }
        return s;
      }
    }
    /**
     * <code>optional string explanation = 2;</code>
     *
     * <pre>
     * NOT SAFE FOR HTML WITHOUT ESCAPING
     * </pre>
     */
    public com.google.protobuf.ByteString
        getExplanationBytes() {
      java.lang.Object ref = explanation_;
      if (ref instanceof java.lang.String) {
        com.google.protobuf.ByteString b = 
            com.google.protobuf.ByteString.copyFromUtf8(
                (java.lang.String) ref);
        explanation_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    private void initFields() {
      code_ = org.bitcoin.paymentchannel.Protos.Error.ErrorCode.OTHER;
      explanation_ = "";
    }
    private byte memoizedIsInitialized = -1;
    public final boolean isInitialized() {
      byte isInitialized = memoizedIsInitialized;
      if (isInitialized != -1) return isInitialized == 1;

      memoizedIsInitialized = 1;
      return true;
    }

    public void writeTo(com.google.protobuf.CodedOutputStream output)
                        throws java.io.IOException {
      getSerializedSize();
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        output.writeEnum(1, code_.getNumber());
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        output.writeBytes(2, getExplanationBytes());
      }
      getUnknownFields().writeTo(output);
    }

    private int memoizedSerializedSize = -1;
    public int getSerializedSize() {
      int size = memoizedSerializedSize;
      if (size != -1) return size;

      size = 0;
      if (((bitField0_ & 0x00000001) == 0x00000001)) {
        size += com.google.protobuf.CodedOutputStream
          .computeEnumSize(1, code_.getNumber());
      }
      if (((bitField0_ & 0x00000002) == 0x00000002)) {
        size += com.google.protobuf.CodedOutputStream
          .computeBytesSize(2, getExplanationBytes());
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSerializedSize = size;
      return size;
    }

    private static final long serialVersionUID = 0L;
    @java.lang.Override
    protected java.lang.Object writeReplace()
        throws java.io.ObjectStreamException {
      return super.writeReplace();
    }

    public static org.bitcoin.paymentchannel.Protos.Error parseFrom(
        com.google.protobuf.ByteString data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.Error parseFrom(
        com.google.protobuf.ByteString data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.Error parseFrom(byte[] data)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
    public static org.bitcoin.paymentchannel.Protos.Error parseFrom(
        byte[] data,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.Error parseFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.Error parseFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.Error parseDelimitedFrom(java.io.InputStream input)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.Error parseDelimitedFrom(
        java.io.InputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseDelimitedFrom(input, extensionRegistry);
    }
    public static org.bitcoin.paymentchannel.Protos.Error parseFrom(
        com.google.protobuf.CodedInputStream input)
        throws java.io.IOException {
      return PARSER.parseFrom(input);
    }
    public static org.bitcoin.paymentchannel.Protos.Error parseFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return PARSER.parseFrom(input, extensionRegistry);
    }

    public static Builder newBuilder() { return Builder.create(); }
    public Builder newBuilderForType() { return newBuilder(); }
    public static Builder newBuilder(org.bitcoin.paymentchannel.Protos.Error prototype) {
      return newBuilder().mergeFrom(prototype);
    }
    public Builder toBuilder() { return newBuilder(this); }

    @java.lang.Override
    protected Builder newBuilderForType(
        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
      Builder builder = new Builder(parent);
      return builder;
    }
    /**
     * Protobuf type {@code paymentchannels.Error}
     *
     * <pre>
     * An Error can be sent by either party at any time
     * Both parties should make an effort to send either an ERROR or a CLOSE immediately before
     * closing the socket (unless they just received an ERROR or a CLOSE)
     * </pre>
     */
    public static final class Builder extends
        com.google.protobuf.GeneratedMessage.Builder<Builder>
       implements org.bitcoin.paymentchannel.Protos.ErrorOrBuilder {
      public static final com.google.protobuf.Descriptors.Descriptor
          getDescriptor() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Error_descriptor;
      }

      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Error_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                org.bitcoin.paymentchannel.Protos.Error.class, org.bitcoin.paymentchannel.Protos.Error.Builder.class);
      }

      // Construct using org.bitcoin.paymentchannel.Protos.Error.newBuilder()
      private Builder() {
        maybeForceBuilderInitialization();
      }

      private Builder(
          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
        super(parent);
        maybeForceBuilderInitialization();
      }
      private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
        }
      }
      private static Builder create() {
        return new Builder();
      }

      public Builder clear() {
        super.clear();
        code_ = org.bitcoin.paymentchannel.Protos.Error.ErrorCode.OTHER;
        bitField0_ = (bitField0_ & ~0x00000001);
        explanation_ = "";
        bitField0_ = (bitField0_ & ~0x00000002);
        return this;
      }

      public Builder clone() {
        return create().mergeFrom(buildPartial());
      }

      public com.google.protobuf.Descriptors.Descriptor
          getDescriptorForType() {
        return org.bitcoin.paymentchannel.Protos.internal_static_paymentchannels_Error_descriptor;
      }

      public org.bitcoin.paymentchannel.Protos.Error getDefaultInstanceForType() {
        return org.bitcoin.paymentchannel.Protos.Error.getDefaultInstance();
      }

      public org.bitcoin.paymentchannel.Protos.Error build() {
        org.bitcoin.paymentchannel.Protos.Error result = buildPartial();
        if (!result.isInitialized()) {
          throw newUninitializedMessageException(result);
        }
        return result;
      }

      public org.bitcoin.paymentchannel.Protos.Error buildPartial() {
        org.bitcoin.paymentchannel.Protos.Error result = new org.bitcoin.paymentchannel.Protos.Error(this);
        int from_bitField0_ = bitField0_;
        int to_bitField0_ = 0;
        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
          to_bitField0_ |= 0x00000001;
        }
        result.code_ = code_;
        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
          to_bitField0_ |= 0x00000002;
        }
        result.explanation_ = explanation_;
        result.bitField0_ = to_bitField0_;
        onBuilt();
        return result;
      }

      public Builder mergeFrom(com.google.protobuf.Message other) {
        if (other instanceof org.bitcoin.paymentchannel.Protos.Error) {
          return mergeFrom((org.bitcoin.paymentchannel.Protos.Error)other);
        } else {
          super.mergeFrom(other);
          return this;
        }
      }

      public Builder mergeFrom(org.bitcoin.paymentchannel.Protos.Error other) {
        if (other == org.bitcoin.paymentchannel.Protos.Error.getDefaultInstance()) return this;
        if (other.hasCode()) {
          setCode(other.getCode());
        }
        if (other.hasExplanation()) {
          bitField0_ |= 0x00000002;
          explanation_ = other.explanation_;
          onChanged();
        }
        this.mergeUnknownFields(other.getUnknownFields());
        return this;
      }

      public final boolean isInitialized() {
        return true;
      }

      public Builder mergeFrom(
          com.google.protobuf.CodedInputStream input,
          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
          throws java.io.IOException {
        org.bitcoin.paymentchannel.Protos.Error parsedMessage = null;
        try {
          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
          parsedMessage = (org.bitcoin.paymentchannel.Protos.Error) e.getUnfinishedMessage();
          throw e;
        } finally {
          if (parsedMessage != null) {
            mergeFrom(parsedMessage);
          }
        }
        return this;
      }
      private int bitField0_;

      // optional .paymentchannels.Error.ErrorCode code = 1 [default = OTHER];
      private org.bitcoin.paymentchannel.Protos.Error.ErrorCode code_ = org.bitcoin.paymentchannel.Protos.Error.ErrorCode.OTHER;
      /**
       * <code>optional .paymentchannels.Error.ErrorCode code = 1 [default = OTHER];</code>
       */
      public boolean hasCode() {
        return ((bitField0_ & 0x00000001) == 0x00000001);
      }
      /**
       * <code>optional .paymentchannels.Error.ErrorCode code = 1 [default = OTHER];</code>
       */
      public org.bitcoin.paymentchannel.Protos.Error.ErrorCode getCode() {
        return code_;
      }
      /**
       * <code>optional .paymentchannels.Error.ErrorCode code = 1 [default = OTHER];</code>
       */
      public Builder setCode(org.bitcoin.paymentchannel.Protos.Error.ErrorCode value) {
        if (value == null) {
          throw new NullPointerException();
        }
        bitField0_ |= 0x00000001;
        code_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional .paymentchannels.Error.ErrorCode code = 1 [default = OTHER];</code>
       */
      public Builder clearCode() {
        bitField0_ = (bitField0_ & ~0x00000001);
        code_ = org.bitcoin.paymentchannel.Protos.Error.ErrorCode.OTHER;
        onChanged();
        return this;
      }

      // optional string explanation = 2;
      private java.lang.Object explanation_ = "";
      /**
       * <code>optional string explanation = 2;</code>
       *
       * <pre>
       * NOT SAFE FOR HTML WITHOUT ESCAPING
       * </pre>
       */
      public boolean hasExplanation() {
        return ((bitField0_ & 0x00000002) == 0x00000002);
      }
      /**
       * <code>optional string explanation = 2;</code>
       *
       * <pre>
       * NOT SAFE FOR HTML WITHOUT ESCAPING
       * </pre>
       */
      public java.lang.String getExplanation() {
        java.lang.Object ref = explanation_;
        if (!(ref instanceof java.lang.String)) {
          java.lang.String s = ((com.google.protobuf.ByteString) ref)
              .toStringUtf8();
          explanation_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
      /**
       * <code>optional string explanation = 2;</code>
       *
       * <pre>
       * NOT SAFE FOR HTML WITHOUT ESCAPING
       * </pre>
       */
      public com.google.protobuf.ByteString
          getExplanationBytes() {
        java.lang.Object ref = explanation_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b = 
              com.google.protobuf.ByteString.copyFromUtf8(
                  (java.lang.String) ref);
          explanation_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
      /**
       * <code>optional string explanation = 2;</code>
       *
       * <pre>
       * NOT SAFE FOR HTML WITHOUT ESCAPING
       * </pre>
       */
      public Builder setExplanation(
          java.lang.String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000002;
        explanation_ = value;
        onChanged();
        return this;
      }
      /**
       * <code>optional string explanation = 2;</code>
       *
       * <pre>
       * NOT SAFE FOR HTML WITHOUT ESCAPING
       * </pre>
       */
      public Builder clearExplanation() {
        bitField0_ = (bitField0_ & ~0x00000002);
        explanation_ = getDefaultInstance().getExplanation();
        onChanged();
        return this;
      }
      /**
       * <code>optional string explanation = 2;</code>
       *
       * <pre>
       * NOT SAFE FOR HTML WITHOUT ESCAPING
       * </pre>
       */
      public Builder setExplanationBytes(
          com.google.protobuf.ByteString value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000002;
        explanation_ = value;
        onChanged();
        return this;
      }

      // @@protoc_insertion_point(builder_scope:paymentchannels.Error)
    }

    static {
      defaultInstance = new Error(true);
      defaultInstance.initFields();
    }

    // @@protoc_insertion_point(class_scope:paymentchannels.Error)
  }

  private static com.google.protobuf.Descriptors.Descriptor
    internal_static_paymentchannels_TwoWayChannelMessage_descriptor;
  private static
    com.google.protobuf.GeneratedMessage.FieldAccessorTable
      internal_static_paymentchannels_TwoWayChannelMessage_fieldAccessorTable;
  private static com.google.protobuf.Descriptors.Descriptor
    internal_static_paymentchannels_ClientVersion_descriptor;
  private static
    com.google.protobuf.GeneratedMessage.FieldAccessorTable
      internal_static_paymentchannels_ClientVersion_fieldAccessorTable;
  private static com.google.protobuf.Descriptors.Descriptor
    internal_static_paymentchannels_ServerVersion_descriptor;
  private static
    com.google.protobuf.GeneratedMessage.FieldAccessorTable
      internal_static_paymentchannels_ServerVersion_fieldAccessorTable;
  private static com.google.protobuf.Descriptors.Descriptor
    internal_static_paymentchannels_Initiate_descriptor;
  private static
    com.google.protobuf.GeneratedMessage.FieldAccessorTable
      internal_static_paymentchannels_Initiate_fieldAccessorTable;
  private static com.google.protobuf.Descriptors.Descriptor
    internal_static_paymentchannels_ProvideRefund_descriptor;
  private static
    com.google.protobuf.GeneratedMessage.FieldAccessorTable
      internal_static_paymentchannels_ProvideRefund_fieldAccessorTable;
  private static com.google.protobuf.Descriptors.Descriptor
    internal_static_paymentchannels_ReturnRefund_descriptor;
  private static
    com.google.protobuf.GeneratedMessage.FieldAccessorTable
      internal_static_paymentchannels_ReturnRefund_fieldAccessorTable;
  private static com.google.protobuf.Descriptors.Descriptor
    internal_static_paymentchannels_ProvideContract_descriptor;
  private static
    com.google.protobuf.GeneratedMessage.FieldAccessorTable
      internal_static_paymentchannels_ProvideContract_fieldAccessorTable;
  private static com.google.protobuf.Descriptors.Descriptor
    internal_static_paymentchannels_UpdatePayment_descriptor;
  private static
    com.google.protobuf.GeneratedMessage.FieldAccessorTable
      internal_static_paymentchannels_UpdatePayment_fieldAccessorTable;
  private static com.google.protobuf.Descriptors.Descriptor
    internal_static_paymentchannels_Close_descriptor;
  private static
    com.google.protobuf.GeneratedMessage.FieldAccessorTable
      internal_static_paymentchannels_Close_fieldAccessorTable;
  private static com.google.protobuf.Descriptors.Descriptor
    internal_static_paymentchannels_Error_descriptor;
  private static
    com.google.protobuf.GeneratedMessage.FieldAccessorTable
      internal_static_paymentchannels_Error_fieldAccessorTable;

  public static com.google.protobuf.Descriptors.FileDescriptor
      getDescriptor() {
    return descriptor;
  }
  private static com.google.protobuf.Descriptors.FileDescriptor
      descriptor;
  static {
    java.lang.String[] descriptorData = {
      "\n\024paymentchannel.proto\022\017paymentchannels\"" +
      "\343\005\n\024TwoWayChannelMessage\022?\n\004type\030\001 \002(\01621" +
      ".paymentchannels.TwoWayChannelMessage.Me" +
      "ssageType\0226\n\016client_version\030\002 \001(\0132\036.paym" +
      "entchannels.ClientVersion\0226\n\016server_vers" +
      "ion\030\003 \001(\0132\036.paymentchannels.ServerVersio" +
      "n\022+\n\010initiate\030\004 \001(\0132\031.paymentchannels.In" +
      "itiate\0226\n\016provide_refund\030\005 \001(\0132\036.payment" +
      "channels.ProvideRefund\0224\n\rreturn_refund\030" +
      "\006 \001(\0132\035.paymentchannels.ReturnRefund\022:\n\020",
      "provide_contract\030\007 \001(\0132 .paymentchannels" +
      ".ProvideContract\0226\n\016update_payment\030\010 \001(\013" +
      "2\036.paymentchannels.UpdatePayment\022%\n\005clos" +
      "e\030\t \001(\0132\026.paymentchannels.Close\022%\n\005error" +
      "\030\n \001(\0132\026.paymentchannels.Error\"\274\001\n\013Messa" +
      "geType\022\022\n\016CLIENT_VERSION\020\001\022\022\n\016SERVER_VER" +
      "SION\020\002\022\014\n\010INITIATE\020\003\022\022\n\016PROVIDE_REFUND\020\004" +
      "\022\021\n\rRETURN_REFUND\020\005\022\024\n\020PROVIDE_CONTRACT\020" +
      "\006\022\020\n\014CHANNEL_OPEN\020\007\022\022\n\016UPDATE_PAYMENT\020\010\022" +
      "\t\n\005CLOSE\020\t\022\t\n\005ERROR\020\n\"X\n\rClientVersion\022\r",
      "\n\005major\030\001 \002(\005\022\020\n\005minor\030\002 \001(\005:\0010\022&\n\036previ" +
      "ous_channel_contract_hash\030\003 \001(\014\"0\n\rServe" +
      "rVersion\022\r\n\005major\030\001 \002(\005\022\020\n\005minor\030\002 \001(\005:\001" +
      "0\"]\n\010Initiate\022\024\n\014multisig_key\030\001 \002(\014\022!\n\031m" +
      "in_accepted_channel_size\030\002 \002(\004\022\030\n\020expire" +
      "_time_secs\030\003 \002(\004\"1\n\rProvideRefund\022\024\n\014mul" +
      "tisig_key\030\001 \002(\014\022\n\n\002tx\030\002 \002(\014\"!\n\014ReturnRef" +
      "und\022\021\n\tsignature\030\001 \002(\014\"\035\n\017ProvideContrac" +
      "t\022\n\n\002tx\030\001 \002(\014\"?\n\rUpdatePayment\022\033\n\023client" +
      "_change_value\030\001 \002(\004\022\021\n\tsignature\030\002 \002(\014\"\023",
      "\n\005Close\022\n\n\002tx\030\003 \002(\014\"\363\001\n\005Error\0225\n\004code\030\001 " +
      "\001(\0162 .paymentchannels.Error.ErrorCode:\005O" +
      "THER\022\023\n\013explanation\030\002 \001(\t\"\235\001\n\tErrorCode\022" +
      "\013\n\007TIMEOUT\020\001\022\020\n\014SYNTAX_ERROR\020\002\022\031\n\025NO_ACC" +
      "EPTABLE_VERSION\020\003\022\023\n\017BAD_TRANSACTION\020\004\022\031" +
      "\n\025TIME_WINDOW_TOO_LARGE\020\005\022\033\n\027CHANNEL_VAL" +
      "UE_TOO_LARGE\020\006\022\t\n\005OTHER\020\007B$\n\032org.bitcoin" +
      ".paymentchannelB\006Protos"
    };
    com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
      new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
        public com.google.protobuf.ExtensionRegistry assignDescriptors(
            com.google.protobuf.Descriptors.FileDescriptor root) {
          descriptor = root;
          internal_static_paymentchannels_TwoWayChannelMessage_descriptor =
            getDescriptor().getMessageTypes().get(0);
          internal_static_paymentchannels_TwoWayChannelMessage_fieldAccessorTable = new
            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
              internal_static_paymentchannels_TwoWayChannelMessage_descriptor,
              new java.lang.String[] { "Type", "ClientVersion", "ServerVersion", "Initiate", "ProvideRefund", "ReturnRefund", "ProvideContract", "UpdatePayment", "Close", "Error", });
          internal_static_paymentchannels_ClientVersion_descriptor =
            getDescriptor().getMessageTypes().get(1);
          internal_static_paymentchannels_ClientVersion_fieldAccessorTable = new
            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
              internal_static_paymentchannels_ClientVersion_descriptor,
              new java.lang.String[] { "Major", "Minor", "PreviousChannelContractHash", });
          internal_static_paymentchannels_ServerVersion_descriptor =
            getDescriptor().getMessageTypes().get(2);
          internal_static_paymentchannels_ServerVersion_fieldAccessorTable = new
            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
              internal_static_paymentchannels_ServerVersion_descriptor,
              new java.lang.String[] { "Major", "Minor", });
          internal_static_paymentchannels_Initiate_descriptor =
            getDescriptor().getMessageTypes().get(3);
          internal_static_paymentchannels_Initiate_fieldAccessorTable = new
            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
              internal_static_paymentchannels_Initiate_descriptor,
              new java.lang.String[] { "MultisigKey", "MinAcceptedChannelSize", "ExpireTimeSecs", });
          internal_static_paymentchannels_ProvideRefund_descriptor =
            getDescriptor().getMessageTypes().get(4);
          internal_static_paymentchannels_ProvideRefund_fieldAccessorTable = new
            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
              internal_static_paymentchannels_ProvideRefund_descriptor,
              new java.lang.String[] { "MultisigKey", "Tx", });
          internal_static_paymentchannels_ReturnRefund_descriptor =
            getDescriptor().getMessageTypes().get(5);
          internal_static_paymentchannels_ReturnRefund_fieldAccessorTable = new
            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
              internal_static_paymentchannels_ReturnRefund_descriptor,
              new java.lang.String[] { "Signature", });
          internal_static_paymentchannels_ProvideContract_descriptor =
            getDescriptor().getMessageTypes().get(6);
          internal_static_paymentchannels_ProvideContract_fieldAccessorTable = new
            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
              internal_static_paymentchannels_ProvideContract_descriptor,
              new java.lang.String[] { "Tx", });
          internal_static_paymentchannels_UpdatePayment_descriptor =
            getDescriptor().getMessageTypes().get(7);
          internal_static_paymentchannels_UpdatePayment_fieldAccessorTable = new
            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
              internal_static_paymentchannels_UpdatePayment_descriptor,
              new java.lang.String[] { "ClientChangeValue", "Signature", });
          internal_static_paymentchannels_Close_descriptor =
            getDescriptor().getMessageTypes().get(8);
          internal_static_paymentchannels_Close_fieldAccessorTable = new
            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
              internal_static_paymentchannels_Close_descriptor,
              new java.lang.String[] { "Tx", });
          internal_static_paymentchannels_Error_descriptor =
            getDescriptor().getMessageTypes().get(9);
          internal_static_paymentchannels_Error_fieldAccessorTable = new
            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
              internal_static_paymentchannels_Error_descriptor,
              new java.lang.String[] { "Code", "Explanation", });
          return null;
        }
      };
    com.google.protobuf.Descriptors.FileDescriptor
      .internalBuildGeneratedFileFrom(descriptorData,
        new com.google.protobuf.Descriptors.FileDescriptor[] {
        }, assigner);
  }

  // @@protoc_insertion_point(outer_class_scope)
}