#1615 add annotation option for serialization Pull request opened by elibixby TL;DR Allow users to specify TypeTransformers via Annotation This is a followup to conversation in #1565 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 How did you fix the bug, make the feature etc. Link to any design docs etc Tracking Issue https://github.com/flyteorg/flyte/issues/ Follow-up issue flyteorg/flytekit ✅ All checks have passed 30/30 successful checks