import { Feed, TransitType } from './gtfs-mta/index.js';
import { FeedMessage } from './gtfs/gtfs-realtime.js';
export type GTFSClientOptions = {
    fetch?: typeof fetch;
    /** can be used to override the default feeds */
    feeds?: Feed[];
};
export type GTFSClientPollOptions = {
    agency: string;
    transitType: TransitType;
    routes?: string[];
};
export declare class GTFSClient {
    private fetch;
    private feeds;
    constructor(options: GTFSClientOptions);
    poll(options: GTFSClientPollOptions): Promise<{
        data: FeedMessage;
        agency: string;
        transitType: TransitType;
        routes?: string[];
        feed: string;
    }[]>;
}