     let yearOfBirth: Int
 }
 
-public struct Attendee {
+public struct Attendee: Hashable {
     public let id: String?
     public let name: String
     public let number: Int?

    }
}

public struct Meldung {
    public let performance: String?
    public let rank: Int?
    public let region: Region

    public let attendees: [Attendee]
}

public struct AttendingDisciplins: Hashable {
    public let requiredPerformance: String?
    public let disciplin: Disciplin
    public let attendees: [Meldung]
