Python Type Challenge - Level: basic, Topic: union

Challenge - union

3.12.11

type checker: pyright

Complete code following the instructions, so that lines followed by # expect-type-error (if any) fail type check, while others can pass.
Hit the "▶️ Run" button to see result.

💡 Read Hints

A union type can be created using the | operator, e.g: X | Y
or using Union

Open Pyright Playground

Stuck? Check out solution

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