code: def test_autoconfig(self):
      op = OpWithCustomConstructor(alpha=0.2, mode="bar")
      config = op.get_config()
      self.assertEqual(config, {"alpha": 0.2, "mode": "bar"})
      revived = OpWithCustomConstructor.from_config(config)
      self.assertEqual(revived.get_config(), config)
  
imports: import numpy
  from keras import backend
  from keras import testing
  from keras.backend.common import keras_tensor
  from keras.ops import numpy
  from keras.ops import operation
label_desc: Use image node_id 4 for calling the OperationTest obj's underlying member method code with example usage: obj.test_autoconfig() without return types