import { SystemLogMediator } from '#logger/system-log-mediator.js';
import { Router } from '#types/router.js';
import { NodeResponse, RequestListener } from '#types/server-options.js';
export declare class PreRouter {
    protected router: Router;
    protected systemLogMediator: SystemLogMediator;
    constructor(router: Router, systemLogMediator: SystemLogMediator);
    requestListener: RequestListener;
    /**
     * Logs an error and sends the user message about an internal server error (500).
     *
     * @param err An error to logs it (not sends).
     */
    protected sendInternalServerError(nodeRes: NodeResponse, err: Error): void;
    protected sendNotImplemented(nodeRes: NodeResponse): void;
    protected handleHeadMethod(nodeRes: NodeResponse): void;
}
//# sourceMappingURL=pre-router.d.ts.map