{
    "model_max_length": 20,
    "pad_token": "<pad>",
    "bos_token": "<sos>",
    "eos_token": "<eos>",
    "unk_token": "<unk>",
    "vocab_files": {
        "vocab_file": "vocab.json"
    },
    "tokenizer_class": "PreTrainedTokenizer"
}