/**
 * Creates a fast hash from an array of numbers
 * Optimized for speed with number arrays
 */
export declare function fastTypedArrayHash(arr: number[]): number;
/**
 * Fast hash for string arrays - uses length + boundary elements + sampling
 * Avoids expensive join() for large arrays while still detecting changes
 */
export declare function fastStringArrayHash(arr: string[] | null | undefined): number;