</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    <span class="keyword">const</span> std::optional&lt;bool&gt; Edge&lt;T&gt;::isWeighted()<span class="keyword"> const</span></div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<span class="keyword">    </span>{</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>