code: def setUp(self):
      super().setUp()
  
      # We have a SentencePiece fixture for testing
      tokenizer = GPTSw3Tokenizer(
          SAMPLE_VOCAB,
          eos_token="<unk>",
          bos_token="<unk>",
          pad_token="<unk>",
      )
  
      tokenizer.save_pretrained(self.tmpdirname)
  
file_path: transformers/tests/models/gpt_sw3/test_tokenization_gpt_sw3.py
imports: import unittest
  from transformers import GPTSw3Tokenizer
  from transformers.testing_utils import get_tests_dir, require_jinja, require_sentencepiece, require_tokenizers, slow
  from ...test_tokenization_common import TokenizerTesterMixin
label_desc: Use image node_id 1 for calling the GPTSw3TokenizationTest obj's underlying member method code with example usage: obj.setUp() without return types