https://learn.microsoft.com/en-us/dotnet/api/system.reflection.emit.opcodes.mkrefany?view=netframework-4.8.1&viewFallbackFrom=net-10.0
OpCodes.Mkrefany Field (System.Reflection.Emit) | Microsoft Learn
Pushes a typed reference to an instance of a specific type onto the evaluation stack.
field systemopcodesreflectionemitmicrosoft