code: def testFailedExampleImageShape(self):
      # Create an empty example that doesn't have the required image/shape field.
      example = example_pb2.Example()
      with self.assertRaisesRegex(
          ValueError,
          (
              "Invalid image/shape: we expect to find an "
              "image/shape field with length 3."
          ),
      ):
          dv_utils.example_image_shape(example)
  
imports: from absl.testing import absltest
  from absl.testing import parameterized
  import tensorflow
  from deepvariant import dv_utils
  from tensorflow.python.platform import gfile
  from third_party.nucleus.io import tfrecord
  from third_party.nucleus.protos import variants_pb2
  from third_party.nucleus.testing import test_utils
  from tensorflow.core.example import example_pb2
label_desc: Use image node_id 4 for calling the TFUtilsTest obj's underlying member method code with example usage: obj.testFailedExampleImageShape() without return types