now that https://github.com/scala/scala/pull/9270 has landed, and after 2.13.4 ships, we'll want to add `batchingGlobal` from https://github.com/scala/scala/pull/9132/commits/9e4f6b2173bc9a17cf79bb7a1439b8b62d316a8b here in the meantime, we'll recommend people just paste the code into their codebases cc @lrytz