export declare const seed: (seed: number) => void;
export declare const simplex2: (xin: number, yin: number) => number;
export declare const simplex3: (xin: number, yin: number, zin: number) => number;
export declare const perlin2: (x: number, y: number) => number;
export declare const perlin3: (x: number, y: number, z: number) => number;