code: def get_preprocessor(space):
      
  
      legacy_patch_shapes(space)
      obs_shape = space.shape
  
      if isinstance(space, gym.spaces.Discrete):
          preprocessor = OneHotPreprocessor
      elif obs_shape == ATARI_OBS_SHAPE:
          preprocessor = GenericPixelPreprocessor
      elif obs_shape == ATARI_RAM_OBS_SHAPE:
          preprocessor = AtariRamPreprocessor
      elif isinstance(space, gym.spaces.Tuple):
          preprocessor = TupleFlatteningPreprocessor
      elif isinstance(space, gym.spaces.Dict):
          preprocessor = DictFlatteningPreprocessor
      else:
          preprocessor = NoPreprocessor
  
      return preprocessor
docs: Returns an appropriate preprocessor class for the given space.