/**
 * Hash Functions for Percentage Rollouts
 *
 * Provides consistent hashing for user bucketing in rollouts.
 *
 * @module flags/advanced/hash-function
 */
/**
 * Hash function type for consistent user bucketing.
 */
export type HashFunction = (key: string, salt?: string) => number;
/**
 * Default hash function using a simple but effective algorithm.
 * Returns a value between 0 and 100.
 */
export declare function defaultHashFunction(key: string, salt?: string): number;