https://learn.microsoft.com/zh-tw/dotnet/api/system.reflection.emit.generictypeparameterbuilder?view=netframework-4.8.1&viewFallbackFrom=net-5.0
GenericTypeParameterBuilder Class (System.Reflection.Emit) | Microsoft Learn
Defines and creates generic type parameters for dynamically defined generic types and methods. This class cannot be inherited.
class systemreflectionemitmicrosoftlearn