export interface NextFunction {
    (err?: Error): void;
}
export interface Handler<T, U> {
    (req: T, res: U, next: NextFunction): any;
}
export interface ErrorHandler<T, U> {
    (err: Error, req: T, res: U, next: NextFunction): any;
}
export declare function wrap<T, U>(fn: Handler<T, U>): Handler<T, U>;
export declare function wrap<T, U>(fn: ErrorHandler<T, U>): ErrorHandler<T, U>;