code: def update_displayed_information(self):
          
  
          for source in self.controller.sources:
              source_name = source.get_source_name()
              if (any(self.graphs_menu.active_sensors[source_name]) or
                      any(self.summary_menu.active_sensors[source_name])):
                  source.update()
  
          for graph in self.visible_graphs.values():
              graph.update()
  
          # update graph summery
          for summary in self.visible_summaries.values():
              summary.update()
  
          # Only update clock if not is stress mode
          if self.controller.stress_conroller.get_current_mode() != 'Monitor':
              self.clock_view.set_text(seconds_to_text(
                  (timeit.default_timer() - self.controller.stress_start_time)))
docs: Update all the graphs that are being displayed