use duplicate::*; #[substitute_item( ty [u16]; )]//duplicate_end pub struct SomeStruct4(ty); //item_end #[substitute_item( Name [SomeStruct5]; ty [u32]; )]//duplicate_end pub struct Name(ty); //item_end #[substitute_item( Name [SomeStruct6]; ty(extra) [extra]; )]//duplicate_end pub struct Name(ty([&'static u64])); //item_end