code: def _save_to_state_dict(self, destination, prefix, keep_vars):
      super()._save_to_state_dict(destination, prefix, keep_vars)
      destination[prefix + "dtype"] = self.dtype
      destination[prefix + "_packed_params"] = self._weight_bias()
  
imports: from typing import Optional
  import torch
  from torch.ao.nn.quantized.modules.utils import _quantize_weight, _hide_packed_params_repr
label_desc: Use image node_id 6 for calling the LinearPackedParams obj's underlying member method code with example usage: obj._save_to_state_dict(destination, prefix, keep_vars) without return types