KeyHoldersModel Definition

[VersionDataContract(AvailableSinceVersion = 1)]
public class KeyHoldersModel
{ 
[VersionDataMember(AvailableSinceVersion=1)]
public IEnumerable<Key> Keys { get; set; }

[VersionDataMember(AvailableSinceVersion=1)]
public IEnumerable<VoiceResponse> VoiceResponses { get; }
}