code: def test_dag_teardown_while_running(ray_start_regular_shared):
      a = Actor.remote(0)
  
      with InputNode() as inp:
          dag = a.sleep.bind(inp)
  
      compiled_dag = dag.experimental_compile()
      chan = compiled_dag.execute(3)  # 3-second slow task running async
      compiled_dag.teardown()
      try:
          chan.begin_read()  # Sanity check the channel doesn't block.
      except Exception:
          pass
  
      # Check we can still use the actor after first DAG teardown.
      with InputNode() as inp:
          dag = a.sleep.bind(inp)
  
      compiled_dag = dag.experimental_compile()
      chan = compiled_dag.execute(0.1)
      result = chan.begin_read()
      assert result == 0.1
      chan.end_read()
  
      compiled_dag.teardown()
  
imports: import logging
  import os
  import random
  import sys
  import time
  import pytest
  import ray
  import ray.cluster_utils
  from ray.exceptions import RaySystemError
  from ray.dag import InputNode, MultiOutputNode
  from ray.tests.conftest import *
label_desc: Use image node_id 9 for calling a global function with example usage: test_dag_teardown_while_running(ray_start_regular_shared) without return types