]" title="Permalink"><i class="material-icons"></i></a></span> <span class="modifier_kind"><span class="modifier"></span> <span class="kind">def</span></span> <span class="symbol"><span class="name">empty</span><span class="tparams">[<span name="Q">Q</span>]</span><span class="result">: <a href="QueryFromPosts.html" name="provingground.learning.QueryFromPosts" id="provingground.learning.QueryFromPosts" class="extype">QueryFromPosts</a>[<span name="provingground.learning.QueryFromPosts.empty.Q" class="ext