p><code>minLevel</code> specifies the minimum <code>DiagnosticLevel</code> for properties included
in the output.</p>
<p>The <a href="../../textfield_search/TextFieldSearch/toStringDeep.html">toStringDeep</a> method takes other arguments, but those are intended
for internal use when recursing to the descendants, and so can be ignored.</p>
<p>See also:</p>
<ul>
<li><a href="../../textfield_search/TextFieldSearch/toString.html">toString</a>, for a brief description of the object but not its children.</li>
<li