export declare const urlCreator: () => {
    new (url: string | URL, base?: string | URL): URL;
    prototype: URL;
    canParse(url: string | URL, base?: string | URL): boolean;
    createObjectURL(obj: Blob | MediaSource): string;
    parse(url: string | URL, base?: string | URL): URL | null;
    revokeObjectURL(url: string): void;
};
/**
 * 移除对象最外层所指定的属性
 * @param obj
 * @param key
 * @returns
 */
export declare const removeProperty: <T>(obj: T, key: string) => T;
/**
 *
 * @param arr
 * @param key
 * @returns
 */
export declare const removePropertyAtArray: <T>(arr: T[], key: string) => T[];
/**
 * 获取当前 index，
 * 注意：index 是累加的
 * @returns
 */
export declare const getIndex: () => (() => number);
/**
 * 获取最新的 uid 工厂函数
 * @returns
 */
export declare const getNewestUidFactory: () => (() => string);