code: def setup_method(self):
      self.dagbag = DagBag(dag_folder=DEV_NULL, include_examples=True)
      self.args = {"owner": "airflow", "start_date": DEFAULT_DATE}
      self.dag = DAG(TEST_DAG_ID, default_args=self.args)
  
file_path: airflow/tests/sensors/test_time_delta.py
imports: from __future__ import annotations
  from datetime import timedelta
  import pytest
  from airflow.models import DagBag
  from airflow.models.dag import DAG
  from airflow.sensors.time_delta import TimeDeltaSensor
  from airflow.utils.timezone import datetime
label_desc: Use image node_id 1 for calling the TestTimedeltaSensor obj's underlying member method code with example usage: obj.setup_method() without return types