v4.20.197

What's Changed

• feat: add retry observer API and stats observer scaffolding by @BobTheBuidler in #1089
• feat: emit retry observer events for internal retries by @BobTheBuidler in #1092
• fix: skip empty multicalls before batch execution by @BobTheBuidler in #1081
• fix: add lazy import return types for mypyc by @BobTheBuidler in #1080
• refactor: centralize weaklist strong snapshots by @BobTheBuidler in #1079
• refactor: centralize batch debug-daemon setup by @BobTheBuidler in #1086
• chore(deps): update dependency ez-a-sync to v0.34.0 by @renovate[bot] in #1087

Full Changelog: v4.20.196...v4.20.197