Interface property method is protected

[sallyx]

I cant create constant on interface, like:

Php::Interface test('Test');
test.property("X", 0, Php::Const);

Got error: error: ‘void Php::ClassBase::property(const char*, int32_t, int)’ is protected within this context

How to fix:
Add method(s) void property(const char *name, int32_t value, int flags = Php::Public) { ClassBase::property(name, value, flags); } into Php::Interface class