span>
<span class="sd">                None if no specific excludes made.</span>

<span class="sd">        Returns:</span>
<span class="sd">            np.ndarray: List of atomic indices that will be included from the</span>
<span class="sd">            system.</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="k">if</span> <span class="n">include</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">exclude</span> <span class=