code: def _get_frame_info(stacklevel, context=1):
    
    frame_list = inspect.getouterframes(inspect.currentframe(), context=context)
    frame_stack_index = stacklevel if stacklevel < len(frame_list) else len(frame_list) - 1
    return frame_list[frame_stack_index]
docs: Get a Traceback for the given `stacklevel`.
  
    For example:
    `stacklevel=0` means this function's frame (_get_frame_info()).
    `stacklevel=1` means the calling function's frame.
    See https://docs.python.org/2/library/inspect.html#inspect.getouterframes for more info.
  
    NB: If `stacklevel` is greater than the number of actual frames, the outermost frame is used
    instead.