code: def iter_stack_frames(frames=None):
      
      if not frames:
          frames = inspect.stack()[1:]
  
      for frame, lineno in ((f[0], f[2]) for f in reversed(frames)):
          f_locals = getattr(frame, 'f_locals', {})
          if not _getitem_from_frame(f_locals, '__traceback_hide__'):
              yield frame, lineno
docs: Given an optional list of frames (defaults to current stack),
      iterates over all frames that do not contain the ``__traceback_hide__``
      local variable.