def generate_sentence(self, sentence: str, gen_len=30):
    self._model.eval()
    results = self._predict_sentence(sentence, gen_len)
    predict_sen = ''.join([x for x in results])
    return (sentence + predict_sen)
def generate_sentence(self, sentence: str, gen_len=30):
    self._model.eval()
    results = self._predict_sentence(sentence, gen_len)
    predict_sen = .join([x for x in results])
    return (sentence + predict_sen)