code: def _Utf8(char):
      return char.encode("utf-8")
  
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 1 for calling a global function with example usage: _Utf8(char) and returns: char