Annotated is one of things you see around quite a bit, and while it's part of the typing library, it provides some actual runtime functionality as well! It can be used to do some pretty powerful things, so in this video, as well as learning how to use it, we'll be looking at how it's been used in the real world to do some pretty crazy things!
0:00 - Intro
0:41 - Using Annotated for attribute validation [1-4]
6:52 - Real-world case study: Msgspec [5-6]
7:58 - Real-world case study: FastAPI [7-8]
8:38 - Real-world case study: Strawberry [9]
9:30 - Outro
[1] https://docs.python.org/3/library/typing.html#typing.Annotated
[2] https://youtu.be/2hWR06BVSg8
[3] https://youtu.be/l0T4jvuP0H8
[4] https://docs.python.org/3/library/inspect.html#inspect.get_annotations
[5] https://jcristharif.com/msgspec/constraints.html
[6] https://youtu.be/vRrndjIr7Ag
[7] https://fastapi.tiangolo.com/tutorial/dependencies/
[8] https://youtu.be/ICnKq9fgLrI
[9] https://strawberry.rocks/docs/types/lazy
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