void SaveSettings(GameSettingsDataModel x)
 {
     if (!x.IsValid)
     {
         return;
     }
     _mediator.Send(new SaveGameSettingsCommand {
         Settings = x
     });
 }
 void SaveSettings(GameSettingsDataModel x) {
     if (!x.IsValid)
         return;
     _mediator.Request(new SaveGameSettingsCommand {Settings = x});
 }