handsome-chips

请问：batch_indices 是什么含义？ LookaheadCache 的put、stream_put函数的最后一个参数idx是什么含义？ mode和 idx 直接有关系吗？ 为啥mode='input', idx = 0,1,2,3.. batch的值，为啥mode='output', idx=-1 ? https://github.com/alipay/PainlessInferenceAcceleration/blob/8015f12f7fe32acc102bb3eb51c4f8b3a420e79c/pia/lookahead/common/pretrained_model_batch.py#L1254-L1259 ```python def put(self, token_ids, branch_length=8, final=False, mode='output', idx=0): ``` 为什么 `idx is only used for...