Imported existing code

libraries/include/boost/python/object/value_holder_fwd.hpp

@@ -0,0 +1,16 @@
+// Copyright David Abrahams 2002.
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+#ifndef VALUE_HOLDER_FWD_DWA2002311_HPP
+# define VALUE_HOLDER_FWD_DWA2002311_HPP
+
+namespace boost { namespace python { namespace objects { 
+
+struct no_back_reference;
+
+template <class CallbackType = no_back_reference> struct value_holder_generator;
+
+}}} // namespace boost::python::object
+
+#endif // VALUE_HOLDER_FWD_DWA2002311_HPP