Hello everyone, nice to meet you I am Naoki Hyu(日宇尚記). a developer live in Tokyo. I often use scala and python as my favorite language .
I have no experience with OSS development, but as I use DataFlow at work, I want to contribute to the development of Beam. In fact, there is a feature I want to develop, and now I have the source code on my local PC. The feature I want to create is an extension of GroupBy to a multiple key, which realizes more complex grouping. https://issues.apache.org/jira/browse/BEAM-7358 Everyone, could you give me an opinion on this intent?
