/lib/galaxy/datatypes/converters/vcf_to_summary_tree_converter.xml

<tool id="CONVERTER_vcf_to_summary_tree_0" name="Convert VCF to Summary Tree" version="1.0.0" hidden="true">

  <description>__NOT_USED_CURRENTLY_FOR_CONVERTERS__</description>

  <command interpreter="python">vcf_to_summary_tree_converter.py $input1 $output1</command>

  <inputs>

    <page>

        <param format="vcf" name="input1" type="data" label="Choose VCF file"/>

    </page>

   </inputs>

  <outputs>

    <data format="summary_tree" name="output1"/>

  </outputs>

  <help>

  </help>

</tool>