l.hpp" header // -- DO NOT modify by hand!  namespace network_boost { namespace mpl {  template<       typename Tag0     , typename Tag0      , BOOST_MPL_AUX_NTTP_DECL(int, tag0_)  = BOOST_MPL_AUX_MSVC_VALUE_WKND(Tag0)::value     , BOOST_MPL_AUX_NTTP_DECL(int, tag0_)  = BOOST_MPL_AUX_MSVC_VALUE_WKND(Tag0)::value     > struct 