To make use of this attribute it's necessary to inherit a class from Exclusive foundation class-initializer or use a static helper technique: MaartenMaarten 23k33 gold badges5151 silver badges6969 bronze badges Add a comment Here's a code produced from the ILSpy from compiled assembly. Class contains created concealed fields and properties. https://commercialpropertyingurgaon.art.blog/2025/06/13/signature-global-plots-farukhnagar-where-your-vision-finds-ground/