code: def pause_simulation(self, pause):
      settings = self.world.get_settings()
      if pause and not settings.synchronous_mode:
          settings.synchronous_mode = True
          settings.fixed_delta_seconds = 0.05
          self.world.apply_settings(settings)
      elif not pause and settings.synchronous_mode:
          settings.synchronous_mode = False
          settings.fixed_delta_seconds = None
          self.world.apply_settings(settings)
  
imports: from __future__ import print_function
  import glob
  import os
  import sys
  import signal
  import carla
  from carla import ColorConverter
  import argparse
  import logging
  import math
  import random
  import weakref
  from rss_sensor import RssSensor
  from rss_visualization import RssUnstructuredSceneVisualizer, RssBoundingBoxVisualizer, RssStateVisualizer
label_desc: Use image node_id 4 for calling the World obj's underlying member method code with example usage: obj.pause_simulation(pause) without return types