 retrieved in any case.</span>

<span class="sd">    Parameters</span>
<span class="sd">    ----------</span>
<span class="sd">    addpar : str or list of str</span>
<span class="sd">        List of additional parameters to be retrieved.</span>

<span class="sd">    Return</span>
<span class="sd">    ------</span>
<span class="sd">    addpar : str</span>
<span class="sd">        List of additional parameters to be retrieved.</span>
<span class="sd">    &#39;&#39;&#39;</span>

    <span class="k">if</span> <