it</a>(<a class="code" href="classmodule.html">module</a>, label)</div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;</div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;if ~isa(<a class="code" href="classmodule.html">module</a>,&#39;module&#39;)</div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;    error(&#39;First input must be of class module.&#39;);</div><div class="line"><a name="l00006"></a><span class="lin