code: def __getstate__(self):
      return self.hello_str, self.integer, self.tensor
  
imports: import multiprocessing
  import os
  import socket
  import time
  import unittest
  import backend
  import dgl
  import pytest
  from numpy.testing import assert_array_equal
  from utils import generate_ip_config, reset_envs
label_desc: Use image node_id 2 for calling the HelloResponse obj's underlying member method code with example usage: obj.__getstate__() and returns: self,  self,  self