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fallout-utility

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export type If<Condition extends boolean, T, E = null> = Condition extends true ? T : Condition extends false ? E : T | E; export interface JSONEncodable<T> { toJSON(): T; } export type RestOrArray<T> = T[] | T[][]; export type Awaitable<T> = T | PromiseLike<T>; export type Nothing<T> = T; export type Combine<A, B> = Omit<A, keyof B> & Omit<B, keyof A> & { [K in keyof A & keyof B]: A[K] | B[K]; }; export type * from 'type-fest';