code: def test_simple_bpe(self):
      BPE_VOCAB_FILE.seek(0)
      bpe = ScriptBPE.from_vocab_file(BPE_VOCAB_FILE)
      tokenized = bpe.tokenize(
          ["hello", "world", "this", "is", "bpe", "今日"]
      )
      self.assertEqual(
          [
              "hello_EOW",
              "world_EOW",
              "th",
              "is_EOW",
              "is_EOW",
              "bpe_EOW",
              "今_EOW",
          ],
          tokenized,
      )
  
file_path: pytext/pytext/torchscript/tests/test_tokenizer.py
imports: import io
  import pickle
  import unittest
  import torch
  from pytext.torchscript.tokenizer import ScriptBPE, ScriptWordTokenizer
  from pytext.torchscript.utils import make_byte_inputs, utf8_chars
label_desc: Use image node_id 2 for calling the BPETest obj's underlying member method code with example usage: obj.test_simple_bpe() without return types