{

private: // types

typedef typename detail::dependent<object,T>::type source_t;

public:

typedef T type;

back_reference(PyObject*, T);

source_t const& source() const;

T get() const;

private:

source_t m_source;

T m_value;

{

public:

BOOST_STATIC_CONSTANT(bool, value = false);

{

public:

BOOST_STATIC_CONSTANT(

bool, value = (

sizeof(detail::is_back_reference_test(boost::type<T>()))

== sizeof(detail::yes_back_reference_t)));