import { Option } from './types';
export declare function debounce<T extends (...args: any) => any>(f: T, wait?: Option<number>): T;
export declare function throttle<T extends (...args: any) => any>(f: T, wait?: Option<number>): T;
/**
 * Merge properties from `source` into `target` if they don't already exist.
 *
 * This is a shallow merge.
 */
export declare function merge<T extends object>(target?: T, source?: T): T;
/**
 * @internal
 */
export declare function flatten<T>(array: (T | T[])[]): T[];
/**
 * Flushes all pending promises.
 *
 * @internal
 */
export declare function flushPromises(): Promise<void>;
/**
 * @internal
 */
export declare function parseBigInt(value: string): number;