``` from transformers import BertTokenizer, BartForConditionalGeneration, Text2TextGenerationPipeline tokenizer = BertTokenizer.from_pretrained("fnlp/bart-large-chinese") model = BartForConditionalGeneration.from_pretrained("fnlp/bart-large-chinese") text2text_generator = Text2TextGenerationPipeline(model, tokenizer) text2text_generator("北京是[MASK]的首都", max_length=50, do_sample=False) [{'generated_text': '北 京 是 中 华 人 民 共 和 国 的 首 都'}] ``` How to remove the blank between chinese characters?