#3304 [Core feature] Add support Literal Transformer Pull request opened by BarryWu0812 ## Tracking issue Closes flyteorg/flyte#6503 ## Why are the changes needed? Support to serialize

Literal

to a literal primitive ## What changes were proposed in this pull request? Add a

Literal

transformer ## How was this patch tested? Unit test and Run the below workflow from flytekit import task, workflow, ImageSpec import flytekit from typing import Literal @task def my_task(feature: Literal["outcome", "income"]) -> str: return f"feature: {feature}" @workflow def wf(feature: Literal["outcome", "income"]) -> str: return my_task(feature=feature) ## Screenshots? [image](https://private-user-images.githubusercontent.com/48407047/481923065-c7617db5-c2cf-4a6f-a577-13692568b0dc.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.BU4HP4J4hVIWsJ76h3XTszP1ApmsylVdhzeFm79a_Ls) ## Check all the applicable boxes • I updated the documentation accordingly. • All new and existing tests passed. • All commits are signed-off. https://bito.ai#summarystart| ### Summary by Bito This pull request introduces a new Literal transformer in the Flyte framework, enhancing the type engine's ability to serialize Literal types into primitive types. It improves data type handling and usability in type management, and includes methods for converting between Literal and Python values. Unit tests have been added to verify the new functionality. flyteorg/flytekit