class_docstr: Warning category used to denote experiments in pytest.
  
  Use sparingly as the API might change or even be removed completely in a
  future version.
code: def simple(cls, apiname: str) -> "PytestExperimentalApiWarning":
      return cls(
          "{apiname} is an experimental api that may change over time".format(
              apiname=apiname
          )
      )
  
imports: import dataclasses
  import inspect
  import warnings
  from types import FunctionType
  from typing import Any
  from typing import final
  from typing import Generic
  from typing import Type
  from typing import TypeVar
label_desc: Use image node_id 1 for calling the PytestExperimentalApiWarning obj's underlying member method code with example usage: obj.simple(cls, apiname) and returns: cls