/**
 * Rate limiter to prevent API throttling
 * @internal
 */
export declare class RateLimiter {
    private queue;
    private processing;
    private lastRequestTime;
    private readonly minInterval;
    /**
     * Creates a new rate limiter
     * @param requestsPerSecond - Maximum requests per second
     */
    constructor(requestsPerSecond: number);
    /**
     * Adds a function to the rate-limited queue
     * @param fn - Function to execute
     * @returns Promise that resolves with the function result
     */
    add<T>(fn: () => Promise<T>): Promise<T>;
    private processQueue;
}
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