code: def test_one_string_ragged(self, lower_case_nfd_strip_accents):
      txt = ragged_factory_ops.constant(
          [[" TExt ", "to", " loWERcase! "], [" TExt to loWERcase! "]]
      )
      expected = _OriginalNormalize(txt, lower_case_nfd_strip_accents)
      text_normalizer_lower_case_nfd_strip_accents = (
          fast_bert_normalizer.FastBertNormalizer(
              lower_case_nfd_strip_accents=lower_case_nfd_strip_accents
          )
      )
      self.assertAllEqual(
          expected,
          text_normalizer_lower_case_nfd_strip_accents.normalize(txt),
      )
  
imports: from absl.testing import parameterized
  import numpy
  import tensorflow
  import tensorflow_text
  from tensorflow.lite.python import interpreter
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import string_ops
  from tensorflow.python.ops.ragged import ragged_factory_ops
  from tensorflow.python.platform import test
  from tensorflow_text.core.pybinds import pywrap_fast_bert_normalizer_model_builder
  from tensorflow_text.python.ops import fast_bert_normalizer
  from tensorflow_text.python.ops import normalize_ops
label_desc: Use image node_id 2 for calling the FastBertNormalizeTest obj's underlying member method code with example usage: obj.test_one_string_ragged(lower_case_nfd_strip_accents) without return types