export declare namespace ArrayUtils {
    /***
     * @param list
     * @param callback
     * @deprecated use ArrayUtils.resolve instead or in some cases even Array.find
     */
    function find<T = any>(list: readonly T[], callback: (item: any, index: number) => any): any;
    /**
     * similar as Array.find but can return a different value
     * @param list
     * @param callback
     */
    function resolve<T = any, R = any>(list: readonly T[], callback: (item: T, index: number) => R): R | undefined;
    function toValidIndexByList(list: readonly any[], index: number): number;
    function toValidIndex(listLength: number, index: number): number;
}