import * as TransportProtocol from './protocols/transports/httt.longpoll/protocol.transport.longpoll';
import LongpollTransport from './transport';
import { Connection } from './transport.connection';
import { TransportMessageProcessor } from './transport.msg.processor';
export declare class MessageHandshakeProcessor extends TransportMessageProcessor<TransportProtocol.Message.Handshake.Request> {
    constructor(transport: LongpollTransport);
    process(connection: Connection, message: TransportProtocol.Message.Handshake.Request): Promise<string>;
}