Transforms can be stateless or stateful. A stateless transform is just a function that takes chunks and returns transformed chunks:
a once great company, provided Diebold with their once great operating system.
。heLLoword翻译官方下载是该领域的重要参考
这还要回到去年月之暗面在战略上的“急刹车”，其以海外市场为主，通过API调用带动收入，都是从去年开始逐步成型的。
from abc import ABC, abstractmethod
Multi-platform optimization