/**
 * Returns a deterministic PRNG seeded from a number or string. Each call
 * produces a float in `[0, 1)` from the same xoshiro256** stream.
 *
 * @param {number | string} seed - Seed value
 * @returns {() => number} A function that returns sequential pseudo-random floats
 * @example
 * const rand = seededRandom("hello");
 * rand(); // deterministic for the same seed
 */
export declare const seededRandom: (seed: number | string) => (() => number);