code: def test_bert_deserialize_to_transformer():
      serialized_block = blocks.serialize(blocks.BertBlock())
  
      block = blocks.deserialize(serialized_block)
  
      assert isinstance(block, blocks.BertBlock)
  
imports: import keras_tuner
  import pytest
  import tensorflow
  from tensorflow import keras
  from tensorflow import nest
  from autokeras import blocks
  from autokeras import test_utils
label_desc: Use image node_id 39 for calling a global function with example usage: test_bert_deserialize_to_transformer() without return types