<macros>
    <xml name="requirements">
        <requirements>
        <requirement type="package">package_snippy_3_0</requirement>
            <yield/>
        </requirements>
    </xml>
    <xml name="stdio">
        <stdio>
            <exit_code range="1:" />
        </stdio>
    </xml>
    <xml name="citations">
        <citations>
            <yield />
        </citations>
    </xml>
</macros>