{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"GenericArg::Const(ConstRef"}]}
            GenericArg::Const(ConstRef { expr }) => self.print_expr(*expr),
            GenericArg::Type(ty) => self.print_type_ref(*ty),
            GenericArg::Lifetime(lt) => self.print_lifetime_ref(*lt),