code: def current_view(self):
          '''return a tuple representing the current view'''
          state = self.state
          return (state.lat, state.lon, state.width, state.height,
                  state.ground_width, state.mt.tiles_pending()f current_view(self):
          '''return a tuple representing the current view'''
          state = self.state
          return (state.lat, state.lon, state.width, state.height,
                  state.ground_width, state.mt.tiles_pending())
docs: return a tuple representing the current view