code: def test_instantiate(self):
      assert Sequence([]) is not None
      assert Sequence([CTC()]) is not None
      assert isinstance(Sequence([]), Decoder)
      assert isinstance(Sequence([]), Sequence)
      serialized = pickle.dumps(Sequence([]))
      assert isinstance(pickle.loads(serialized), Sequence)
  
imports: import json
  import pickle
  import pytest
  from tokenizers.decoders import CTC, BPEDecoder, ByteLevel, Decoder, Metaspace, Sequence, WordPiece, ByteFallback, Replace, Strip, Fuse
label_desc: Use image node_id 1 for calling the TestSequenceDecoder obj's underlying member method code with example usage: obj.test_instantiate() without return types