import { PickRestrictedObject } from "./types";
export declare type ChainedObject<T extends PickRestrictedObject<T, Function>> = {
    [key in keyof T]: (...p: Parameters<T[key]>) => ChainedObject<T>;
};
/**
 * Creates a chain with functions.
 *
 * @example
 *
 * const chained = chain({
 *   count: 1,
 *   increase(count: number) { this.count += count },
 *   decrease(count: number) { this.count -= count }
 * });
 * chained.increase(2).decrease(1);
 *
 * // => 2
 */
export declare function chain<T extends object>(source: T): ChainedObject<PickRestrictedObject<T, Function>>;