partial         void CopyExtraPropertiesToClone(Picklist clone, bool includeLocalProperties);
 public Picklist Clone(bool includeLocalProperties)
 {
     var c = new Picklist
             {
                 Id = Id,
                 SortOrder = SortOrder,
                 Text = Text,
             };
     CopyExtraPropertiesToClone(c, includeLocalProperties);
     return c;
 }