#1313 Fix mypy errors Pull request opened by pingsutw TL;DR Fixed all the mypy errors Type ☑︎ Bug Fix ☐ Feature ☐ Plugin Are all requirements met? ☑︎ Code completed ☑︎ Smoke tested ☑︎ Unit tests added ☐ Code documentation added ☐ Any pending items have an associated Issue Complete description ^^^ Tracking Issue Fixes flyteorg/flyte#1030 Follow-up issue NA flyteorg/flytekit Codecov: 55.63% of diff hit (target 69.46%) GitHub Actions: build (windows-latest, 3.8) ✅ 28 other checks have passed 28/30 successful checks