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    <p class="pln"><span class="n"><a id="t1" href="#t1">1</a></span><span class="t"><span class="str">"""Utilities for cog."""</span>&nbsp;</span><span class="r"></span></p>
    <p class="pln"><span class="n"><a id="t2" href="#t2">2</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
    <p class="run"><span class="n"><a id="t3" href="#t3">3</a></span><span