code: def _Utf8(char):
      return char.encode("utf-8")
  
file_path: text/tensorflow_text/python/ops/hub_module_tokenizer_test.py
imports: from absl.testing import parameterized
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import lookup_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.ops.ragged import ragged_factory_ops
  from tensorflow.python.platform import test
  from tensorflow_text.python.ops import hub_module_tokenizer
label_desc: Use image node_id 1 for calling a global function with example usage: _Utf8(char) and returns: char