import type { SourceRequest, RawResponse, StreamRequest, StreamChannel, SourceError } from './contract.js';
export interface StreamHandlers {
    onFrame(frame: unknown): void;
    onClose(reason: string): void;
    onError(err: SourceError): void;
}
export interface Transport {
    send(req: SourceRequest): Promise<RawResponse>;
    open(req: StreamRequest, handlers: StreamHandlers): StreamChannel;
}