code: def test_shape_inference_failure(self):
      class DynamicLayer(layers.Layer):
          def call(self, inputs):
              return inputs + 1.0
  
          def compute_output_spec(self, *args, **kwargs):
              raise NotImplementedError
  
      model = Sequential([DynamicLayer()])
      x = np.random.random((3, 2))
      y = model(x)
      self.assertAllClose(y, x + 1)
      model.summary()
  
imports: import numpy
  import pytest
  from keras import backend
  from keras import layers
  from keras import testing
  from keras.layers.core.input_layer import Input
  from keras.models.functional import Functional
  from keras.models.sequential import Sequential
label_desc: Use image node_id 7 for calling the SequentialTest obj's underlying member method code with example usage: obj.test_shape_inference_failure() and returns: unknown