class_docstr: Result/Exception info a function invocation. 
class_docstr_tok: ["Result\/Exception","info","a","function","invocation","."]
code: def result(self):
      if self.excinfo is not None:
          raise AttributeError("{!r} has no valid result".format(self))
      return self._result
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import bdb
  import os
  import sys
  from time import time
  import attr
  import six
  from .reports import CollectErrorRepr
  from .reports import CollectReport
  from .reports import TestReport
  from _pytest._code.code import ExceptionInfo
  from _pytest.compat import safe_str
  from _pytest.outcomes import Exit
  from _pytest.outcomes import Skipped
  from _pytest.outcomes import TEST_OUTCOME
label_desc: Use image node_id 1 for calling the CallInfo obj's underlying member method code with example usage: obj.result() and returns: self