"is not an lvalue" when passing template function to spawn function

[Bienlein via Digitalmars-d-learn]

Hello,

I get the error "`addToBiz(T)(Biz!T biz)` is not an lvalue and 
cannot be modified" when compiling the code below. Can't find a 
way how to do it right. Am a D newbie and would appreciate some 
help.

Thank you, Bienlein



class Biz(T) {

        private T value;

        this(T value) {
            this.value = value; 
        }

}

    static void addToBiz(T)(Biz!T biz)
    {
        // ...
    }


    int main()
    {
        auto biz = new Biz!int(123);
        spawn(&addToBiz, biz);
    }