/**
 * @omnifolio/rate-governor — Core Rate Limiter
 *
 * In-memory rate limiter with automatic cleanup and emergency eviction.
 * Works standalone for single-instance deployments; pair with a RedisAdapter
 * for multi-instance / Cloud Run / Kubernetes environments.
 *
 * Built by OmniFolio — https://omnifolio.app
 */
import type { RateLimitConfig, RateLimitResult, RateLimitStats, RedisAdapter } from './types';
/**
 * Check (and increment) rate limit using the in-memory store.
 *
 * This is the synchronous fast-path used for single-instance deployments
 * or as a fallback when Redis is unavailable.
 */
export declare function checkRateLimit(identifier: string, config: RateLimitConfig): RateLimitResult;
/**
 * Check (and increment) rate limit using a RedisAdapter.
 *
 * Uses atomic INCR+EXPIRE for the hot path (1 round-trip).
 * Falls back to in-memory if the adapter call returns `null`.
 */
export declare function checkRateLimitAsync(identifier: string, config: RateLimitConfig, redis: RedisAdapter): Promise<RateLimitResult>;
/** Get stats about the in-memory store */
export declare function getStats(): RateLimitStats;
/** Manually block an identifier for `durationMs` (default 1 hour) */
export declare function blockIdentifier(identifier: string, durationMs?: number): void;
/** Unblock a previously blocked identifier */
export declare function unblockIdentifier(identifier: string): void;
/** Clear all rate limit records (useful in tests) */
export declare function clearStore(): void;
//# sourceMappingURL=rate-limiter.d.ts.map