code: def test_ko_tokenizer_pickle(ko_tokenizer):
      b = pickle.dumps(ko_tokenizer)
      ko_tokenizer_re = pickle.loads(b)
      assert ko_tokenizer.to_bytes() == ko_tokenizer_re.to_bytes()
  
imports: import pickle
  from spacy.lang.ko import Korean
  from ...util import make_tempdir
label_desc: Use image node_id 2 for calling a global function with example usage: test_ko_tokenizer_pickle(ko_tokenizer) without return types