code: def testRaggedMatrix(self, encoding):
      test_value = ragged_factory_ops.constant(
          [
              [ord("H"), 0xC3, ord("l"), ord("l"), ord("o")],
              [
                  ord("W"),
                  0x1F604,
                  ord("r"),
                  ord("l"),
                  ord("d"),
                  ord("."),
              ],
          ],
          np.int32,
      )
      expected_value = [
          "H\xc3llo".encode(encoding),
          "W\U0001f604rld.".encode(encoding),
      ]
      unicode_encode_op = ragged_string_ops.unicode_encode(
          test_value, encoding
      )
      self.assertAllEqual(unicode_encode_op, expected_value)
  
imports: from absl.testing import parameterized
  import numpy
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import errors_impl
  from tensorflow.python.framework import tensor_spec
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops.ragged import ragged_factory_ops
  from tensorflow.python.ops.ragged import ragged_string_ops
  from tensorflow.python.ops.ragged import ragged_tensor
  from tensorflow.python.ops.ragged import ragged_tensor_value
  from tensorflow.python.platform import test
label_desc: Use image node_id 11 for calling the UnicodeEncodeOpTest obj's underlying member method code with example usage: obj.testRaggedMatrix(encoding) without return types