// In header: <boost/stl_interfaces/iterator_interface.hpp>


template<typename Derived, typename IteratorConcept, typename ValueType, 
         typename Reference = ValueType, 
         typename DifferenceType = std::ptrdiff_t> 
using proxy_iterator_interface = iterator_interface< Derived, IteratorConcept, ValueType, Reference, proxy_arrow_result< Reference >, DifferenceType >;