Need Validations property on Schema about contentful.net HOT 2 CLOSED

new ContentType
           {
               SystemProperties = new SystemProperties { Id = "test" },
               Name = "Test",
               Description = "Test content type",
               DisplayField = "title",
               Fields = new List<Field>
               {
                   new Field {Id="id", Name="Id", Required=true, Type="Symbol", Validations = new List<IFieldValidator> { new UniqueValidator() } },
                   new Field {Id="title", Name="Title", Required=true, Type="Symbol" },
                   new Field {Id="widgets", Name="Widgets", Type="Array", Items = new Schema {
                       Type = "Link",
                       LinkType ="Entry",
                       Validations = new List<IFieldValidator> { new LinkContentTypeValidator("Custom error message", "Market")} }
                   } }
               }