code: def __init__(self, public_key: rsa.RSAPublicKey):
      self._public_key = public_key
  
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 1 to create a new RSAPublicKey object from inherited base classes: PublicKey with example: obj = RSAPublicKey(public_key)