<macros>
    <xml name="requirements">
        <requirements>
            <requirement type="package" version="1.2">samtools</requirement>
            <yield/>
        </requirements>
    </xml>
    <xml name="citations">
        <citations>
            <citation type="doi">10.1093/bioinformatics/btp352</citation>
        </citations>
    </xml>
    <xml name="version_command">
        <version_command>samtools --version | head -n 1 | awk '{ print $2 }'</version_command>
    </xml>
    <xml name="stdio">
        <stdio>
            <exit_code range="1:" level="fatal" description="Error" />
        </stdio>
    </xml>
</macros>