how to use base class method in cxx-generator's js?

cocos2d-x JavaScript
#1

i use a singleton template class, but the ’getInstance()" method is no list in the generated js, how to use it? my class is like below:

class PaPicker : public PaSingletonObject< PaPicker >
{
public:
virtual ~PaPicker();

protected:
PaPicker();
friend class PaSingletonObject< PaPicker >;
};

the PaSingletonObject template has the “getInstance” method.

thanks.