type Callback = (...args: any[]) => void;
/**
 * 节流和防抖返回值类型
 */
export interface DebounceAndThrottleReturnType<F extends Callback> {
    (...args: Parameters<F>): void;
    cancel(): void;
}
/**  第二参数  */
export type debounce_throttle_options = {
    delay?: number;
    this?: null | unknown;
} | number;
/**
 * 防抖
 *
 * @param   callback 回调函数
 * @param   options    延迟时间（毫秒），默认 200 (ms) 或包含 this 的配置
 * @returns   返回的闭包函数
 * @example
 *
 * ```ts
 * const debounce = (callback: Function, delay = 300) => {
 *   let timer: any = null
 *
 *   return (...args: any[]) => clearTimeout(timer)
 * }
 * ```
 */
export declare function debounce<F extends Callback>(callback: F, options?: debounce_throttle_options): DebounceAndThrottleReturnType<F>;
/**
 * 节流
 *
 * @param callback   回调函数
 * @param options      延迟时间（毫秒），默认 200 (ms) 或设置 this
 * @returns   返回的闭包函数
 */
export declare function throttle<F extends Callback>(callback: F, options?: debounce_throttle_options): DebounceAndThrottleReturnType<F>;
export {};