Hi Beam developers, I'm Mazen, a Computer Science student at Nile University in Egypt. I've contributed to Apache Maven and the Accord Project, and I'm looking forward to contributing to Apache Beam.
I've opened my first Beam PR for #20226 <https://github.com/apache/beam/issues/20226>, which reduces Python runtime type-checking overhead by merging two wrappers into one. PR: https://github.com/apache/beam/pull/40501 I'd appreciate your feedback. Thanks!
