import React from 'react';
import { OptionsItem } from '../dropdown';
import { CascadeOptions, ValueType } from './type';
/**
 * 判断是否为string数组
 * @en Determine whether it is a string array
 * */
export declare function isStringArray(options: string[] | OptionsItem[][] | CascadeOptions[]): options is string[];
/**
 * 判断是否为嵌套数组
 * @en Determine if it is a nested array
 * */
export declare function isCascadeArray(options: string[] | OptionsItem[][] | CascadeOptions[]): options is CascadeOptions[];
/**
 * 格式化传入的数组
 * @en format the input array
 * @param {OptionsItem[][] | string[] | CascadeOptions[]} options 上层传入的选择项数组
 * @param {OptionsItem[][] | string[] | CascadeOptions[]} options {en} Array of options from the upper layer
 * @param {ValueType} currentValues Current selected value
 * */
export declare const getFormattedOptions: (options: OptionsItem[][] | string[] | CascadeOptions[], currentValues: ValueType) => {
    formattedOptions: OptionsItem[][];
    formattedValue: (string | number | React.ReactText[])[];
};
/**
 * 判断是否为指定ref内的元素
 * @en Determine whether it is an element within the specified ref
 */
export declare const isRefDom: (dom: any, ref: React.RefObject<HTMLDivElement | null>) => boolean;
/**
 * 判断是否为指定类名下的元素
 * @en Determine whether it is an element under the specified classname
 */
export declare const isClassNameDom: (dom: any, className: string) => boolean;