<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">foo</span></span>
<span class="hljs-keyword">end</span>

<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">*</span></span>(other)
<span class="hljs-keyword">end</span>

<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">**</span></span>(other)
<span class="hljs-keyword">end</span>

<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">=~</span></span>(other)
<span class="hljs-keyword">end</span>

<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">!~</span></span>(other)
<span class="hljs-keyword">end</span>