Шаблонизация указателя на метод класса

class MyObject
{
public:
    int getInt() const { return 2; }
    double getDouble() const { return 4.4; }
    bool getBool() const { return true; }
};

typedef double (MyObject::*PGetter)() const;
 
template <PGetter getFunction>
class RequestGet
{
public:
    void print(MyObject *pObject) {
        double value = (pObject->*getFunction)();
        qDebug() << value;
    }
};

    MyObject obj;
    RequestGet<&MyObject::getDouble> getter;
    getter.print(&obj);

RequestGet<int, &MyObject::getInt> intGetter;
intGetter.print(&obj);
 
RequestGet<double, &MyObject::getDouble> doubleGetter;
doubleGetter.print(&obj);
 
RequestGet<bool, &MyObject::getBool> boolGetter;
boolGetter.print(&obj);

template <typename T>
using PGetter2 = T (MyObject::*)() const;
 
template <typename T, PGetter2<T> getFunction>
class RequestGet2
{
public:
    void print(MyObject *pObject) {
        T value = (pObject->*getFunction)();
        qDebug() << value;
    }
};

template <typename ResType, ResType (MyObject::*getFunction)() const>
class RequestGet
{
public:
 
    void print(MyObject *pObject)
    {
        qDebug() << (pObject->*getFunction)();
    }
 
};