export interface RateLimiterOptions {
    interval: number;
    maxRequests: number;
    timeout?: number;
}
export interface QueuedRequest<T> {
    fn: () => Promise<T>;
    resolve: (value: T) => void;
    reject: (error: Error) => void;
    addedAt: number;
}
export declare const DEFAULT_RATE_LIMIT_TIMEOUT = 30000;
export declare class RateLimiter {
    private queue;
    private processing;
    private requestHistory;
    private readonly options;
    constructor(options: RateLimiterOptions);
    add<T>(fn: () => Promise<T>, options?: {
        timeout?: number;
    }): Promise<T>;
    private processQueue;
    private waitIfNeeded;
    private delay;
    getQueueSize(): number;
    getPendingRequests(): number;
}
export declare const bitcoinInscriptionsRateLimiter: RateLimiter;