   |   - list[str]: list with str for each bin. </span>
<span class="sd">            |                (len(:bin_labels:) = :nhbins:)</span>
<span class="sd">            |   - &#39;#&#39;: plots number.</span>
<span class="sd">        :plot_edge_lines:</span>
<span class="sd">            | True or False, optional</span>
<span class="sd">            | Plot grey bin edge lines with &#39;--&#39;.</span>
<span class="sd">        :plot_center_lines:</span>
<span class="sd">            | False or True, optional</s