tokenizer.lang_token_to_id = {t: i for t, i in zip(tokenizer.all_special_tokens, tokenizer.all_special_ids) if i > 5}
tokenizer.lang_code_to_token = {s.strip("_"): s for s in tokenizer.lang_token_to_id}
tokenizer.lang_code_to_id = {s.strip("_"): i for s, i in tokenizer.lang_token_to_id.items()}
tokenizer.id_to_lang_token = {i: s for s, i in tokenizer.lang_token_to_id.items()}