code: def test_with_requirements_file(self, dag_maker, tmp_path):
      requirements_file = tmp_path / "requirements.txt"
      requirements_file.write_text("funcsigs==0.4\nattrs==23.1.0")
  
      @task.virtualenv(
          system_site_packages=False,
          requirements="requirements.txt",
          python_version=PYTHON_VERSION,
          use_dill=True,
      )
      def f():
          import funcsigs
  
          if funcsigs.__version__ != "0.4":
              raise Exception
  
          import attrs
  
          if attrs.__version__ != "23.1.0":
              raise Exception
  
      with dag_maker(template_searchpath=tmp_path.as_posix()):
          ret = f()
  
      ret.operator.run(start_date=DEFAULT_DATE, end_date=DEFAULT_DATE)
  
imports: from __future__ import annotations
  import datetime
  import sys
  from subprocess import CalledProcessError
  import pytest
  from airflow.decorators import setup, task, teardown
  from airflow.utils import timezone
label_desc: Use image node_id 6 for calling the TestPythonVirtualenvDecorator obj's underlying member method code with example usage: obj.test_with_requirements_file(dag_maker, tmp_path) without return types