code: def test_config(self):
      cosine_obj = metrics.CosineSimilarity(
          axis=2, name="my_cos", dtype="int32"
      )
      self.assertEqual(cosine_obj.name, "my_cos")
      self.assertEqual(cosine_obj.dtype, "int32")
  
      # Check save and restore config
      cosine_obj2 = metrics.CosineSimilarity.from_config(
          cosine_obj.get_config()
      )
      self.assertEqual(cosine_obj2.name, "my_cos")
      self.assertEqual(cosine_obj2._dtype, "int32")
  
imports: import numpy
  from absl.testing import parameterized
  from keras import testing
  from keras.metrics import regression_metrics
label_desc: Use image node_id 3 for calling the CosineSimilarityTest obj's underlying member method code with example usage: obj.test_config() without return types