import { Request, Response } from 'express';
import { MiddlewareOptions } from 'graphql-playground-html';
export interface KubelessEventInterface {
    'event-type': string;
    'event-id': string;
    'event-time': string;
    'event-namespace': string;
    data: any;
    extensions: {
        request: Request;
        response: Response;
    };
}
/**
 * While Kubeless supports returning a result
 * that it will use to send the request, we
 * handle actually writing what we need to
 * for graphql clients directly here, thus
 * the return type of void.
 */
export declare type KubelessPlaygroundMiddleware = (event: KubelessEventInterface, context: any) => void;
export declare type Register = (options: MiddlewareOptions) => KubelessPlaygroundMiddleware;
declare const kubeless: Register;
export default kubeless;