code: def init_scene(self, prefix, settings=None, spectator_tr=None):
      super(ThreeCarsSlowSpeedCollision, self).init_scene(
          prefix, settings, spectator_tr
      )
  
      blueprint_library = self.world.get_blueprint_library()
  
      vehicle00_bp = blueprint_library.filter("prius")[0]
      vehicle01_bp = blueprint_library.filter("a2")[0]
      vehicle02_bp = blueprint_library.filter("lincoln")[0]
  
      vehicle00_tr = carla.Transform(
          carla.Location(110, -255, 0.05), carla.Rotation(yaw=180)
      )
      vehicle01_tr = carla.Transform(
          carla.Location(53, -257, 0.00), carla.Rotation(yaw=0)
      )
      vehicle02_tr = carla.Transform(
          carla.Location(85, -230, 0.04), carla.Rotation(yaw=-90)
      )
  
      batch = [
          SpawnActor(vehicle00_bp, vehicle00_tr).then(
              ApplyTargetVelocity(
                  FutureActor, carla.Vector3D(-15, 0, 0)
              )
          ),
          SpawnActor(vehicle01_bp, vehicle01_tr).then(
              ApplyTargetVelocity(
                  FutureActor, carla.Vector3D(+15, 0, 0)
              )
          ),
          SpawnActor(vehicle02_bp, vehicle02_tr).then(
              ApplyTargetVelocity(
                  FutureActor, carla.Vector3D(0, -15, 0)
              )
          ),
      ]
  
      responses = self.client.apply_batch_sync(batch)
  
      veh_ids = [x.actor_id for x in responses]
      veh_refs = [self.world.get_actor(x) for x in veh_ids]
  
      self.add_actor(veh_refs[0], "Car")
      self.add_actor(veh_refs[1], "Car")
      self.add_actor(veh_refs[2], "Car")
  
      self.wait(1)
  
imports: from .None import SmokeTest
  import carla
  import time
  import numpy
  import filecmp
  import shutil
  import os
label_desc: Use image node_id 1 for calling the ThreeCarsSlowSpeedCollision obj's underlying member method code with example usage: obj.init_scene(prefix, settings, spectator_tr) without return types