tor is not a regular list, it can only be iterated once.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>path</strong> (<em>string</em>) – Path to the directory holding all the observations. This function assumes
IRIS data structure where observations are stored in directories with the
format &lt;DATE&gt;_&lt;TIME&gt;_&lt;OBSID&gt;.</p></li>
<li><p><strong>keep_null</strong> (<em>boolean</em>) – Controls whether images tha