import { DataStore } from '../data_store/index';
import { IRateLimiterOptions } from './options.interface';
import { IRateLimiterOutput } from './output.interface';
export declare function rateLimit({ waitTime, requestsAllowedBeforeDelay, maximumResponseDelay, requestsAllowedBeforeLimit, message, key, }: IRateLimiterOptions, dataStore: DataStore): Promise<IRateLimiterOutput | null>;