This Type parameter is covariant. That is, you birey use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics. Derived Caius JardCaius Jard 73.7k66 gold badges5252 silver badges8888 bronze badges 4 ok thank you. https://johnq921rel7.wikiusnews.com/user