="k">def</span> <span class="nf">_reset_structure</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="sd">&quot;&quot;&quot;Resets the common structural information that is cached by this</span>
<span class="sd">        object. The caching is done in order to share common structural</span>
<span class="sd">        quantities that are needed by multiple descriptors.</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="bp">self</sp