code: def test_serialization(self):
      # TODO
      pass
  
file_path: keras/keras/ops/function_test.py
imports: import numpy
  from keras import testing
  from keras.backend.common import keras_tensor
  from keras.ops import function
  from keras.ops import numpy
label_desc: Use image node_id 6 for calling the FunctionTest obj's underlying member method code with example usage: obj.test_serialization() without return types