/**
 * Perform no operation.
 * Stubbing args to make Flow happy without leaving useless transpiled code
 * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
 */
export declare function noop(..._args: any[]): void;
/**
 * Always return false.
 */
export declare const no: (..._args: any[]) => boolean;
/**
 * Return same value
 */
export declare const identity: (_: any) => any;
export declare function assign<T, S>(tar: T, src: S): T & S;
export declare function run(fn: Function): any;
export declare function runAll(fns: Function[]): void;