import { TPlugin, Iryba, IStringOpts } from "../types";
declare module ".." {
    interface ColorMaster {
        /**
         * Converts a RGBA color instance to RYBA color object
         * @see http://nishitalab.org/user/UEI/publication/Sugita_IWAIT2015.pdf
         * @see https://web.archive.org/web/20130525061042/www.insanit.net/tag/rgb-to-ryb/
         */
        ryba(): Iryba;
        /**
         * Gives the string representation of an input RYBA color object
         *
         * @example CM({ r: 200, g: 150, b: 100, a: 0.7 }).stringRYB() → "color(ryba 200, 200, 100, 0.7)"
         * @default opts = { alpha: true, precision: [0, 0, 0, 1] }
         * @returns ```color(ryb[a] R, Y, B[, A])```
         */
        stringRYB(opts?: IStringOpts): string;
    }
}
declare const RYBPlugin: TPlugin;
export default RYBPlugin;