code: def __setstate__(self, state):
      self.__dict__.update(state)
      self._private_key = serialization.load_der_private_key(
          self._private_key, password=None
      )
  
imports: from __future__ import annotations
  import base64
  import threading
  from abc import ABC, abstractmethod
  from cryptography import exceptions
  from cryptography.hazmat.primitives import hashes, serialization
  from cryptography.hazmat.primitives.asymmetric import padding, rsa
label_desc: Use image node_id 7 for calling the RSAPrivateKey obj's underlying member method code with example usage: obj.__setstate__(state) without return types