set_wrapper

If I have a simple class

class A {}

and a function 

void f_A(void){...}

pyste's set_wrapper(A.f,"f_A") should, IMHO, generate

class_< A >("A", init<  >())
        .def(init< const A & >())
        .def("f", &f_A)
    ;
even if A::f() is not present. Is there a reason why it doesn't?

Thanks in advance,
Giulio