pan><span class="n">system_iterator</span><span class="p">):</span>
    <span class="sd">&quot;&quot;&quot;</span>
<span class="sd">    Args:</span>
<span class="sd">        system_stats(iterable containing ASE.Atoms or System): The atomic</span>
<span class="sd">            systems for which to gather statistics.</span>

<span class="sd">    Returns:</span>
<span class="sd">        Dict: A dictionary of different statistics for the system. The</span>
<span class="sd">        dictionary will contain:</span>