code: def get_preinit_encoders(encoders: List[encoder.Encoder]) -> List[Tuple[str, mx.init.Initializer]]:
      
      init = []  # type: List[Tuple[str, mx.init.Initializer]]
      for enc in encoders:
          if hasattr(enc, "get_initializers"):
              enc = cast(encoder_image.ImageLoadedCnnEncoder, enc)
              init.extend(enc.get_initializers())
      return init
docs: Get initializers from encoders. Some encoders might be initialized from pretrained models.
  
      :param encoders: List of encoders
      :return: The list of initializers