#include <string>
#include <vector>
 
template <typename String, template<class> class Allocator>
class basic_data_object
{
  template<typename T>
  using array_container = std::vector<T, Allocator<T>>;
};
 
template <typename String, template<class> class Allocator, typename T>
struct get_data_object_value
{
};
 
template <typename String, template<class> class Allocator, typename T>
struct get_data_object_value
<String, Allocator,
typename basic_data_object<String, Allocator>::template array_container<T>>
{
};
 
int main()
{
	get_data_object_value<std::string,std::allocator,std::vector<short>> obj;
}

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