<?xml version="1.0"?>
<macros>
    <xml name="requirements">
        <requirements>
            <requirement type="package" version="2.2.5">bowtie2</requirement>
            <requirement type="package" version="2.5.0">metaphlan2</requirement>
        </requirements>
    </xml>
    <xml name="stdio">
        <stdio>
            <exit_code range="1:" level="fatal"   description="" />
            <regex match="ERROR"
                   source="stderr"
                   level="fatal"
                   description="" />
            <regex match="WARNING"
                   source="stderr"
                   level="warning"
                   description="" />
        </stdio>
    </xml>
</macros>