template class Poco::Any::Holder

template <typename ValueType>
class Holder: public Poco::Any::ValueHolder
{
public:
    // fields

    ValueType _held;

    // construction

    Holder(const ValueType& value);

    // methods

    virtual
    const std::type_info&
    type() const;

    virtual
    void
    clone(Placeholder<ValueHolder>* pPlaceholder) const;
};