code: def test_check_for_circular_dependency(self, dag_maker):
      with dag_maker() as dag:
          s1 = make_task("s1", type_="classic", setup_=True)
          s2 = make_task("s2", type_="classic", setup_=True)
          t1 = make_task("t1", type_="classic", teardown_=True)
          t2 = make_task("t2", type_="classic", teardown_=True)
  
          s1 >> s2
          s1 >> t1
          s2 >> t1
          s1 >> t2
          s2 >> t2
          with t1, t2:
              make_task("work_task", type_="classic")
  
      dag.validate()
  
      assert dag.task_group.children.keys() == {
          "s1",
          "s2",
          "t1",
          "t2",
          "work_task",
      }
      assert dag.task_group.children["s1"].downstream_task_ids == {
          "s2",
          "work_task",
          "t1",
          "t2",
      }
      assert dag.task_group.children["s2"].downstream_task_ids == {
          "work_task",
          "t1",
          "t2",
      }
      assert dag.task_group.children["t2"].downstream_task_ids == {"t1"}
  
imports: from __future__ import annotations
  import pytest
  from airflow.decorators import setup, task, task_group, teardown
  from airflow.decorators.setup_teardown import context_wrapper
  from airflow.exceptions import AirflowException
  from airflow.operators.bash import BashOperator
label_desc: Use image node_id 44 for calling the TestSetupTearDownTask obj's underlying member method code with example usage: obj.test_check_for_circular_dependency(dag_maker) without return types