code: def test_show_only_active_fixtures(
      pytester: Pytester, mode, dummy_yaml_custom_test
  ) -> None:
      pytester.makepyfile(
          '''
          import pytest
          @pytest.fixture
          def _arg0():
              """hidden arg0 fixture"""
          @pytest.fixture
          def arg1():
              """arg1 docstring"""
          def test_arg1(arg1):
              pass
      '''
      )
  
      result = pytester.runpytest(mode)
      assert result.ret == 0
  
      result.stdout.fnmatch_lines(
          [
              "*SETUP    F arg1*",
              "*test_arg1 (fixtures used: arg1)*",
              "*TEARDOWN F arg1*",
          ]
      )
      result.stdout.no_fnmatch_line("*_arg0*")
  
file_path: pytest/testing/test_setuponly.py
imports: import sys
  import pytest
  from _pytest.config import ExitCode
  from _pytest.pytester import Pytester
label_desc: Use image node_id 2 for calling a global function with example usage: test_show_only_active_fixtures(pytester, mode, dummy_yaml_custom_test) without return types