code: def __legacy_menu(self):
      legacy_menu = cellprofiler.gui.menu.Menu(self.frame)
  
      legacy_menu.append(
          "MATLAB format images",
          contents=cellprofiler.gui.help.content.read_content(
              "legacy_matlab_image.rst"
          ),
      )
  
      return legacy_menu
  
imports: import webbrowser
  import wx.adv
  from cellprofiler.gui.dialog import AboutDialogInfo
  import cellprofiler.gui.help.content
  import cellprofiler.gui.help.search
  import cellprofiler.gui.htmldialog
  import cellprofiler.gui.menu
label_desc: Use image node_id 5 for calling the Menu obj's underlying member method code with example usage: obj.__legacy_menu() and returns: legacy_menu