code: def test_weights(self):
      agent = TestAgent(self.alg)
      weight = agent.get_weights()
      agent.set_weights(weight)
  
imports: import numpy
  import unittest
  import os
  import torch
  import torch.nn
  import torch.optim
  import parl
label_desc: Use image node_id 5 for calling the AgentBaseTest obj's underlying member method code with example usage: obj.test_weights() without return types