span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="o">==</span> <span class="n">parameter_name</span><span class="o">.</span><span class="n">lower</span><span class="p">()][</span><span class="mi">0</span><span class="p">]</span>

    <span class="kn">from</span><span class="w"> </span><span class="nn">besos.parameters</span><span class="w"> </span><span class="kn">import</span> <span class="n">Parameter</span><span class="p">,</span> <span class="n">GenericSelector</s