import type { ArrayVector4D } from "./types.js";
/**
 * Create an immutable 4D vector.
 * @param {ArrayVector4D} xyzw - Vector as `[x, y, z, w]`
 * @returns {Readonly<ArrayVector4D>} The immutable vector
 */
export declare const immutable4D: (xyzw: ArrayVector4D) => Readonly<ArrayVector4D>;