code: def __output_menu(self):
      output_menu = cellprofiler.gui.menu.Menu(self.frame)
  
      output_menu.append(
          "How Measurements are Named",
          contents=cellprofiler.gui.help.content.read_content(
              "output_measurements.rst"
          ),
      )
  
      output_menu.append(
          "Using Spreadsheets and Databases",
          contents=cellprofiler.gui.help.content.read_content(
              "output_spreadsheets.rst"
          ),
      )
  
      output_menu.append(
          "Plate Viewer",
          contents=cellprofiler.gui.help.content.read_content(
              "output_plateviewer.rst"
          ),
      )
  
      return output_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 12 for calling the Menu obj's underlying member method code with example usage: obj.__output_menu() and returns: output_menu