code: def test_model_summary_graph(self):
      x = Input(shape=(8,))
      y = Dense(10)(x)
      z = Dense(12)(y)
      model = Model(x, z)
      model.summary()
  
imports: import pytest
  import shutil
  from zoo.feature.common import ChainedPreprocessing
  from zoo.feature.image import *
  from zoo.pipeline.api.keras.layers import *
  from zoo.pipeline.api.keras.models import *
  from test.zoo.pipeline.utils.test_utils import ZooTestCase
label_desc: Use image node_id 14 for calling the TestSimpleIntegration obj's underlying member method code with example usage: obj.test_model_summary_graph() without return types