 class="sd">    :type  universe_dict:               dict</span>

<span class="sd">    :return:                            The dictionary of time series</span>
<span class="sd">    :rtype:                             dict</span>
<span class="sd">    &quot;&quot;&quot;</span>
    <span class="k">for</span> <span class="n">df_name</span> <span class="ow">in</span> <span class="n">universe_dict</span><span class="p">:</span>
        <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span