import { HttpErrors, Request, Response } from '@loopback/rest';
import { LLMStreamEvent } from '../graphs/event.types';
import { ITransport } from './types';
export declare class HttpTransport implements ITransport {
    private readonly response;
    private readonly req;
    private readonly data;
    constructor(response: Response, req: Request);
    private _ended;
    start(): Promise<void>;
    send(message: LLMStreamEvent): Promise<void>;
    onCancel(cb: Function): void;
    end(err?: HttpErrors.HttpError): Promise<void>;
    private _handleChunk;
}