code: def test_model_copy_with_multi_copy(self):
      self.assertEqual(
          len(self.target_model2.state_dict()),
          len(self.target_model2.state_dict()),
      )
      for (name1, var1), (name2, var2) in zip(
          self.target_model2.named_parameters(),
          self.target_model3.named_parameters(),
      ):
          self.assertEqual(name1, name2)
          var1_np = var1.numpy().sum()
          var2_np = var2.numpy().sum()
          self.assertLess(float(np.abs(var1_np - var2_np)), 1e-5)
  
imports: import numpy
  import paddle
  import paddle.nn
  import parl
  import unittest
  from copy import deepcopy
  from parl.core.paddle.model import Model
label_desc: Use image node_id 3 for calling the ModelBaseTest obj's underlying member method code with example usage: obj.test_model_copy_with_multi_copy() without return types