<tool id="render_tree" name="render tree" version="0.1.0">
    <description>render a newick tree</description>
    <requirements>
        <requirement type="package" version="1.16">bioconductor-ggtree</requirement>
    </requirements>
    <version_command>echo '0.1.0'</version_command>
    <command detect_errors="exit_code"><![CDATA[
        $__tool_directory__/render_tree.R
          '${tree}'
          '${image}'
    ]]></command>
    <inputs>
        <param name="tree" type="data" format="nhx" />
    </inputs>
    <outputs>
        <data name="image" format="png" />
    </outputs>
    <tests>
    </tests>
    <help><![CDATA[
    ]]></help>
    <citations>
      <citation type="bibtex">
@article{yu2017ggtree,
  title={ggtree: an R package for visualization and annotation of phylogenetic trees with their covariates and other associated data},
  author={Yu, Guangchuang and Smith, David K and Zhu, Huachen and Guan, Yi and Lam, Tommy Tsan-Yuk},
  journal={Methods in Ecology and Evolution},
  volume={8},
  number={1},
  pages={28--36},
  year={2017},
  publisher={Wiley Online Library}
}
      </citation>
    </citations>
</tool>