export interface ITimeTrackingOptions {
    milliSecBeforeWarning: number;
}
export declare class TimeTrackingMiddleware {
    private options;
    constructor(options?: ITimeTrackingOptions);
    private static getDurationInMilliseconds;
    private static warnIfExceeded;
    middleWare(): (req: any, res: any, next: () => void) => void;
}
export declare const timeTracking: (options?: ITimeTrackingOptions) => (req: any, res: any, next: () => void) => void;