g tagname">macro</span><span class="tag tagcontent">&nbsp;docname=</span><span class="attrib tag tagcontent">"average"</span><span class="tag">&gt;</span></div><a name="line2"></a><div class="line line-2">&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="tag">&lt;</span><span class="tag tagname">signature</span><span class="tag">&gt;</span></div><a name="line3"></a><div class="line line-3">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span class="tag">&lt;</span><span class="tag tagname">argument</span>