code: def test_proxy_wrapper_wait(self):
      self.add_master()
      self.add_worker(n_cpu=1)
      parl.connect("localhost:{}".format(self.port))
  
      actor = Actor(10)
  
      assert actor.arg == 10
  
      actor.arg2 = 20
      assert actor.arg2 == 20
  
      assert actor.add_one(1) == 2
  
imports: import unittest
  import parl
  import numpy
  from parl.remote.client import disconnect
  from parl.utils.test_utils import XparlTestCase
  import time
  import threading
  import random
label_desc: Use image node_id 1 for calling the Test_proxy_wrapper obj's underlying member method code with example usage: obj.test_proxy_wrapper_wait() without return types