code: def test_handles_byte_encoding(self):
      tokenizer = CharacterTokenizer(
          byte_encoding="utf-8", start_tokens=[259], end_tokens=[260]
      )
      word = "åøâáabe"
      tokens = [t.text_id for t in tokenizer.tokenize(word)]
      # Note that we've added one to the utf-8 encoded bytes, to account for masking.
      expected_tokens = [
          259,
          196,
          166,
          196,
          185,
          196,
          163,
          196,
          162,
          98,
          99,
          102,
          260,
      ]
      assert tokens == expected_tokens
  
file_path: allennlp/tests/data/tokenizers/character_tokenizer_test.py
imports: from allennlp.common import Params
  from allennlp.common.testing import AllenNlpTestCase
  from allennlp.data.tokenizers import CharacterTokenizer
label_desc: Use image node_id 3 for calling the TestCharacterTokenizer obj's underlying member method code with example usage: obj.test_handles_byte_encoding() without return types