import { IError } from "polka";
import type { Bootstrapper } from "../../Contracts/Foundation/Boostrapper";
import type { Middleware } from "../../Contracts/Http/Middleware";
import { Request } from "../../Http/Request";
import HttpResponse from "../../Http/Response";
import type { Class, ObjectOf } from "../../Types";
import type Application from "../Application";
declare class Kernel {
    protected app: Application;
    protected middleware: (Middleware | Class<Middleware>)[];
    protected middlewareGroups: ObjectOf<(Middleware | Class<Middleware>)[]>;
    protected routeMiddleware: ObjectOf<Middleware | Class<Middleware>>;
    protected bootstrappers: Class<Bootstrapper>[];
    constructor(app: Application);
    start(): Promise<Application>;
    private handleMiddleware;
    private send;
    protected reportException(e: string | IError): void;
    protected renderException(req: Request, e: string | IError): Promise<HttpResponse>;
}
export default Kernel;