s="method-click-advice">click to toggle source</span>
          
        </div>
        
        

        <div class="method-description">
          
          <p>Retrieve a file handle within the given translation unit. file_name a
String for the name of the file.</p>

<p>it returns the file handle for the named file in the translation unit , a
nil if the file was not a part of this translation unit.</p>
          
          

          
          <div class="method-source-code" id="file-source">
        