125   constexpr int *begin() { return nullptr; }  in begin()  function
134   constexpr int *begin() const { return nullptr; }  in begin()  function
143   constexpr const int *begin() const { return nullptr; }  in begin()  function
157   constexpr const Empty *begin() const { return nullptr; }  in begin()  function
187   friend constexpr const int *begin(EndFunction const&) { return nullptr; }  in begin()  function
230   friend constexpr int *begin(EndFunctionByValue) { return nullptr; }  in begin()  function
236   friend constexpr int *begin(EndFunctionEnabledBorrowing) { return nullptr; }  in begin()  function
244   friend constexpr const Empty *begin(EndFunctionReturnsEmptyPtr const&) { return nullptr; }  in begin()  function
251   friend constexpr const int *begin(EndFunctionWithDataMember const&) { return nullptr; }  in begin()  function
257   friend constexpr const int *begin(EndFunctionWithPrivateEndMember const&) { return nullptr; }  in begin()  function
265   constexpr const int *begin() const { return nullptr; }  in begin()  function