/**
 * Token bucket rate limiter for controlling API request rates.
 * Ensures requests don't exceed the specified rate limit.
 */
export declare class RateLimiter {
    private tokens;
    private readonly maxTokens;
    private readonly refillRate;
    private lastRefill;
    private readonly minInterval;
    /**
     * Create a new rate limiter
     * @param requestsPerMinute Maximum number of requests allowed per minute
     */
    constructor(requestsPerMinute: number);
    /**
     * Wait until a request can be made within the rate limit
     * @returns Promise that resolves when the request can proceed
     */
    waitForToken(): Promise<void>;
    /**
     * Get current token count (for debugging/monitoring)
     */
    getAvailableTokens(): number;
}
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