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This type is meant to model operations like await in async functions, or the .then() method on Promises - specifically, the way that they recursively unwrap Promises.

type A = Awaited<Promise<string>>;
// type A = string

type B = Awaited<Promise<Promise<number>>>;
// type B = number

type C = Awaited<boolean | Promise<number>>;
// type C = number | boolean

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