public void AddTechnician(Technician technician)
 {
     technicians.Add(technician);
 }
        public void SetTechnicianToDevice(ITechnician technician, Device device, int techniciansId)
        {
            Technician matchedTechnician = technician.GetTechnicianById(techniciansId);

            device.Technician = matchedTechnician;
        }