declare type FunctionReturnType<T> = T extends () => infer R ? R : never;
declare type PromiseArrayValues<T extends readonly (() => unknown)[] | []> = T extends readonly (() => unknown)[] ? {
    -readonly [P in keyof T]: Awaited<FunctionReturnType<T[P]>>;
} : never;
/**
 * promise all with each task could retry in multiple times.
 *
 * @example
 *
 * promiseAll([() => 1, () => new Promise((resolve) => resolve(2))], 2);
 *
 * // => [1, 2]
 */
export declare function promiseAll<T extends ((readonly (() => unknown)[]) | [])>(tasks: T, retry?: number): Promise<PromiseArrayValues<T>>;
/**
 * promise all with each task could retry in multiple times.
 *
 * @example
 *
 * promiseAll([() => 1, () => new Promise((resolve) => resolve(2))], () => true);
 *
 * // => [1, 2]
 */
export declare function promiseAll<T extends ((readonly (() => unknown)[]) | [])>(tasks: T, predicate: () => unknown): Promise<PromiseArrayValues<T>>;
export {};