\[p(k)= \frac{\exp(z_k)} {\sum\limits_{m \in \mathcal{D}} \exp(z_m)}, \qquad k \in \mathcal{D}.\]The final scalar score is the expected value of this distribution:
王毅：去年以来，中国同欧洲国家的关系相继回暖。贸易总额超过1万亿美元，200多万欧洲游客免签来华，欧洲领导人更是接踵来访，彼此往来日趋活跃，还达成了一批新的合作协议。事实证明，中欧关系的稳定性源于共同利益，确定性来自互利共赢。，详情可参考新收录的资料
Warm-up: Linked lists #，更多细节参见新收录的资料
When we run timeTravel(checkoutFlow, traceLog), it will actually exercise our checkout workflow, and produce the following output. With that, we’ve successfully executed a production execution trace locally, all without touching any database or external service: