ption"></a></span><a class="link" href="has_key.html#fusion.sequence.intrinsic.functions.has_key.description">Description</a>
          </h6>
<p>
            Returns a type convertible to <code class="computeroutput"><span class="keyword">bool</span></code>
            that evaluates to <code class="computeroutput"><span class="keyword">true</span></code> if
            the sequence contains an element associated with a Key, else, evaluates
            to <code class="computeroutput"><span class="keyword">f