code: def runtest(self):
      _check_all_skipped(self.dtest)
      self._disable_output_capturing_for_darwin()
      failures = []
      self.runner.run(self.dtest, out=failures)
      if failures:
          raise MultipleDoctestFailures(failures)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import inspect
  import platform
  import sys
  import traceback
  import warnings
  from contextlib import contextmanager
  import pytest
  from _pytest._code.code import ExceptionInfo
  from _pytest._code.code import ReprFileLocation
  from _pytest._code.code import TerminalRepr
  from _pytest.compat import safe_getattr
  from _pytest.fixtures import FixtureRequest
  from _pytest.outcomes import Skipped
  from _pytest.warning_types import PytestWarning
label_desc: Use image node_id 3 for calling the DoctestItem obj's underlying member method code with example usage: obj.runtest() without return types