code: def _append(self, menu):
          '''append this menu item to a menu'''
          from MAVProxy.modules.lib.wx_loader import wx
          submenu = wx.Menu()
          for i in range(len(self.items)):
              submenu.AppendRadioItem(self.id()+i, self.items[i], self.description)
              if self.items[i] == self.initial:
                  submenu.Check(self.id()+i, True)
          menu.AppendSubMenu(submenu, self.namef _append(self, menu):
          '''append this menu item to a menu'''
          from MAVProxy.modules.lib.wx_loader import wx
          submenu = wx.Menu()
          for i in range(len(self.items)):
              submenu.AppendRadioItem(self.id()+i, self.items[i], self.description)
              if self.items[i] == self.initial:
                  submenu.Check(self.id()+i, True)
          menu.AppendSubMenu(submenu, self.name)
docs: append this menu item to a menu