import { RateLimitConfig, RateLimitResult } from './rateLimitTypes';
/**
 * Rate limiter using token bucket algorithm
 */
export declare class RateLimiter {
    private static instance;
    private buckets;
    private configs;
    private constructor();
    static getInstance(): RateLimiter;
    /**
     * Set rate limit configuration for an operation
     */
    setLimit(operation: string, config: RateLimitConfig): void;
    /**
     * Check if operation is allowed
     */
    checkLimit(operation: string, identifier?: string): RateLimitResult;
    /**
     * Reset rate limit for an operation
     */
    reset(operation: string, identifier?: string): void;
    /**
     * Clear all rate limits
     */
    clear(): void;
    private getBucket;
}
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