Appointment expected 0 arguments

[csiLauri]

Hi,
I'm trying to create a new calendar event using Appointment. When I try to assign my service to an appointment got "Expected 0 arguments, but got 1"

const appointment = new ews.Appointment(this.ewsService);
appointment.Subject = eventDetails.subject;
appointment.Start = eventDetails.startTime;
appointment.End = eventDetails.dueTime;