ass="o">=</span><span class="kc">True</span><span class="p">):</span>
        <span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Identify all functional groups (or all within a certain subset) in the</span>
<span class="sd">        molecule, combining the methods described above.</span>

<span class="sd">        :param elements: List of elements that will qualify a carbon as special</span>
<span class="sd">            (if only certain functional groups are of interest).</span>
<span class="