/**
 * Fixtures shared by the data-view util suites.
 *
 * Kept in one place because `pack-lanes.test.ts` pins recorded goldens built
 * from these generators: a golden only means something if the data behind it
 * cannot drift, and two copies of an LCG eventually stop agreeing.
 */
/** Seeded LCG — a failing case has to be reproducible. */
export declare function seededRandom(seed: number): () => number;
/** FNV-1a over the decimal text, so [1, 23] and [12, 3] can't collide. */
export declare function digest(values: readonly number[]): string;
export declare const randomItems: (seed: number, count: number) => {
    x: number;
    width: number;
}[];
//# sourceMappingURL=helpers.d.ts.map