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/// <reference no-default-lib="true"/>

interface PromiseFulfilledResult<T> {
    status: "fulfilled";
    value: T;
}

interface PromiseRejectedResult {
    status: "rejected";
    reason: any;
}

type PromiseSettledResult<T> = PromiseFulfilledResult<T> | PromiseRejectedResult;

interface PromiseConstructor {
    /**
     * Creates a Promise that is resolved with an array of results when all
     * of the provided Promises resolve or reject.
     * @param values An array of Promises.
     * @returns A new Promise.
     */
    allSettled<T extends readonly unknown[] | []>(values: T): Promise<{ -readonly [P in keyof T]: PromiseSettledResult<Awaited<T[P]>>; }>;

    /**
     * Creates a Promise that is resolved with an array of results when all
     * of the provided Promises resolve or reject.
     * @param values An array of Promises.
     * @returns A new Promise.
     */
    allSettled<T>(values: Iterable<T | PromiseLike<T>>): Promise<PromiseSettledResult<Awaited<T>>[]>;
}