code: def testDummyOperators(self):
      a = ragged_factory_ops.constant([[True, True], [False]])
      with self.assertRaisesRegex(
          TypeError, "RaggedTensor may not be used as a boolean."
      ):
          bool(a)
      with self.assertRaisesRegex(
          TypeError, "RaggedTensor may not be used as a boolean."
      ):
          if a:
              pass
  
file_path: tensorflow-upstream/tensorflow/python/ops/ragged/ragged_operators_test.py
imports: from tensorflow.python import tf2
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops.ragged import ragged_factory_ops
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 5 for calling the RaggedElementwiseOpsTest obj's underlying member method code with example usage: obj.testDummyOperators() without return types