    ----------</span>
<span class="sd">    acctype : str</span>
<span class="sd">        The field type for the accumulated forecast fields.</span>

<span class="sd">    ftype : list of str</span>
<span class="sd">        List of field types.</span>

<span class="sd">    Return</span>
<span class="sd">    ------</span>
<span class="sd">    acctype : str</span>
<span class="sd">        The field type for the accumulated forecast fields.</span>
<span class="sd">    &#39;&#39;&#39;</span>
    <span class="k">i