code: def test_set_weights(self):
      x = backend.Variable([[1.0, 2.0], [3.0, 4.0]])
      optimizer_1 = optimizers.Adam()
      grads = backend.convert_to_tensor([[1.0, 2.0], [3.0, 4.0]])
      optimizer_1.apply_gradients(zip([grads], [x]))
      optimizer_2 = optimizers.Adam()
      with self.assertRaisesRegex(ValueError, "You are calling*"):
          optimizer_2.set_weights(optimizer_1.variables)
      optimizer_2.build([x])
      optimizer_2.set_weights(optimizer_1.variables)
      for i in range(len(optimizer_1.variables)):
          self.assertAllClose(
              optimizer_1.variables[i],
              optimizer_2.variables[i],
          )
  
file_path: keras/keras/optimizers/optimizer_test.py
imports: import numpy
  import pytest
  from keras import backend
  from keras import constraints
  from keras import layers
  from keras import models
  from keras import optimizers
  from keras import testing
label_desc: Use image node_id 7 for calling the OptimizerTest obj's underlying member method code with example usage: obj.test_set_weights() without return types