v0.22.4

What's Changed

• feat(mypy): proper Coroutine typing by @BobTheBuidler in #295
• fix(mypy): __await__ method typing by @BobTheBuidler in #296
• chore(mypy): fix mypy errs by @BobTheBuidler in #297

Full Changelog: v0.22.3...v0.22.4