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#include <array>
class Package
{
public:
template<class T, size_t N>
friend Package& operator<<(Package& pg, std::tr1::array<T, N> const& arr)
{
return pg;
}
};
int main()
{
Package pkg;
std::tr1::array<int, 3> arry;
pkg << arry;
return 0;
}