{ "add_prefix_space": false, "clean_up_tokenization_spaces": true, "cls_token": "<|beginoftext|>", "do_basic_tokenize": true, "do_lower_case": true, "mask_token": "[MASK]", "model_max_length": 1024, "never_split": null, "pad_token": "[PAD]", "sep_token": "<|endoftext|>", "strip_accents": null, "tokenize_chinese_chars": true, "tokenizer_class": "BertTokenizer", "unk_token": "[UNK]" }