code: def init_scene(self, prefix, settings=None, spectator_tr=None):
      super().init_scene(prefix, settings, spectator_tr)
  
      blueprint_library = self.world.get_blueprint_library()
  
      car_tr = carla.Transform(
          carla.Location(50, -255, 0.04), carla.Rotation(yaw=0)
      )
      car = self.world.spawn_actor(
          blueprint_library.filter("*lincoln*")[0], car_tr
      )
  
      walker_tr = carla.Transform(
          carla.Location(85, -255, 1.00), carla.Rotation(yaw=-90)
      )
      walker_bp = blueprint_library.filter("walker.pedestrian.0007")[0]
      if walker_bp.has_attribute("is_invincible"):
          walker_bp.set_attribute("is_invincible", "false")
      walker = self.world.spawn_actor(walker_bp, walker_tr)
  
      self.wait(1)
  
      car.set_target_velocity(carla.Vector3D(+20, 0, 0))
      walker.set_simulate_physics(True)
      self.add_actor(car, "Car")
      self.add_actor(walker, "Walker")
  
      self.wait(1)
  
imports: import glob
  import os
  import sys
  import argparse
  import time
  import filecmp
  import shutil
  import numpy
  import carla
label_desc: Use image node_id 1 for calling the CarWalkerCollision obj's underlying member method code with example usage: obj.init_scene(prefix, settings, spectator_tr) without return types