See more about this deprecation here along with its implementing pull request.
Такой прогноз не способствует раннему сходу снежного покрова, добавил синоптик.。新收录的资料是该领域的重要参考
64 - Related Work。新收录的资料对此有专业解读
Transforms can be stateless or stateful. A stateless transform is just a function that takes chunks and returns transformed chunks: