<span class="w"> </span><span class="ss">:z</span><span class="p" data-group-id="9164639209-7">)</span><span class="w">
</span><span class="mi">0</span></code></pre>
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<section class="detail" id="cross/2">
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    <h1 class="signature">cross(arg1, arg2)</span>
    