/**
 * export with memoize.
 * @param color
 * @returns
 */
export declare const toRGB: {
    (...args: any[]): any;
    cache: {
        clear: (isPartial?: number) => void;
        has: (key: any) => boolean;
        get: (key: any) => any;
        set: (key: any, value: any) => void;
    };
};