How to use the sacremoses.util.xml_unescape function in sacremoses

def tokenize(self, text: str) -> str:
        """Tokenizes a text and returns the tokens as a string"""

        # REM_NON_PRINT_CHAR
        # not implemented

        # NORM_PUNC
        text = self.normalizer.normalize(text)

        # DESCAPE
        if self.descape:
            text = xml_unescape(text)

        # MOSES_TOKENIZER
        # see: https://github.com/facebookresearch/LASER/issues/55#issuecomment-480881573
        text = self.tokenizer.tokenize(text,
                                       return_str=True,
                                       escape=False,
                                       aggressive_dash_splits=False)

        # jieba
        if self.lang == 'zh':
            text = ' '.join(jieba.cut(text.rstrip('\r\n')))

        # MECAB
        if self.lang == 'ja':
            text = self.mecab_tokenizer.parse(text).rstrip('\r\n')