#include <tuple>
 
template<class...>class types_t{
	using type=types_t; constexpr types_t(){};
};
 
  template<class...Ts>
  constexpr const types_t<Ts...> types={};
 
  template<class T>class tag{using type=T;};
 
  template<class Tag>using type_t=typename Tag::type;
 
  template<class T>using block_deduction=type_t<tag<T>>;
 
  template<class... Return, class... Args> std::tuple<Return...> Method(
    types_t<Return...> ret_types,
    types_t<Args...> arg_types,
    block_deduction<Args>... args
  );
 
int main(){}

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