="linenos">10</span></a><span class="k">def</span><span class="w"> </span><span class="nf">first_param</span><span class="p">(</span><span class="n">func</span><span class="p">:</span> <span class="n">Callable</span><span class="p">):</span>
</span><span id="first_param-11"><a href="#first_param-11"><span class="linenos">11</span></a><span class="w">    </span><span class="sd">&quot;&quot;&quot;Name of function&#39;s first parameter if any&quot;&quot;&quot;</span>
</span><span id="first_param-12"><a href="#