class Hospital {
  String id;
  String name;
  String address;
  List<String> departments;
  
  Hospital({
    required this.id,
    required this.name,
    required this.address,
    required this.departments,
  });
}

class Doctor {
  String id;
  String name;
  String department;
  String title;
  String fee;
  
  Doctor({
    required this.id,
    required this.name,
    required this.department,
    required this.title,
    required this.fee,
  });
}

class Appointment {
  String id;
  String hospitalName;
  String doctorName;
  String department;
  DateTime time;
  String status;
  String fee;
  
  Appointment({
    required this.id,
    required this.hospitalName,
    required this.doctorName,
    required this.department,
    required this.time,
    required this.status,
    required this.fee,
  });
}