check_dates</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">end</span><span class="p">):</span>
    <span class="sd">&#39;&#39;&#39;Checks if there is at least a start date for a one-day retrieval.</span>

<span class="sd">    Checks if end date lies after start date and end date is set.</span>

<span class="sd">    Parameters</span>
<span class="sd">    ----------</span>
<span class="sd">    start : str</span>
<span class="sd">        The start date of the