export declare class DepartureCalculator {
    /**
     * Calculates the predicted departure time based on the scheduled departure time, arrival time and delay.
     **/
    static getPredictedDepartureTime: (departureTime: Date, arrivalTime: Date | null, delayInSeconds: number | null) => Date;
    /**
     * Calculates the number of minutes until the predicted departure time.
     **/
    static getDepartureMinutes: (predictedDepartureTime: Date) => number;
}