code: def testDelItemFails(self):
      d = immutable_dict.ImmutableDict({"x": 1, "y": 2})
      with self.assertRaises(TypeError):
          del d["x"]  # pylint: disable=unsupported-delete-operation
      with self.assertRaises(TypeError):
          del d["z"]
  
file_path: tensorflow/tensorflow/python/framework/immutable_dict_test.py
imports: from absl.testing import parameterized
  from tensorflow.python.framework import immutable_dict
  from tensorflow.python.framework import test_util
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 13 for calling the ImmutableDictTest obj's underlying member method code with example usage: obj.testDelItemFails() without return types