import { Filter } from '../types.ts';
import { RealTimeFeedBase } from './realtimefeed.ts';
export declare class BlockchainComRealTimeFeed extends RealTimeFeedBase {
    protected readonly wssURL = "wss://ws.blockchain.info/mercury-gateway/v1/ws";
    protected readonly originHeader = "https://exchange.blockchain.com";
    protected mapToSubscribeMessages(filters: Filter<string>[]): any[];
    protected messageIsError(message: any): boolean;
    protected messageIsHeartbeat(msg: any): boolean;
    protected onConnected(): Promise<void>;
}
//# sourceMappingURL=blockchaincom.d.ts.map