Call to parameterized protected constructor of a base class when interop with C++

In 2.0 and `devel` you can use the expanded `constructor` pragma. There is a similar example in the docs:

Call to parameterized protected constructor of a base class when interop with C++

Hello, the point is how to wrap a C++ base class with non-default protected constructor. Pure C++ use case is class Base{ protected: Base(string name){ } }; class Derived : public Base { public: Derived(string name) : Base(name){ } };