oldest property
      
      String?
      get
      oldest
      
    
    
    
Implementation
String? get oldest => _oldest?.get();
      
      set
      oldest
      (dynamic v) 
      
    
    
    
Implementation
set oldest(dynamic v) {
  if (_oldest != null) {
    _oldest!.set(v);
  } else if (v != null) {
    _oldest = StringObservable(Binding.toKey(id, 'oldest'), v,
        scope: scope, listener: onPropertyChange);
  }
}