Variants for interfaces

[Mandeep Singh Brar]

Hi,

Is it possible to point a variable to an interface. The below code does not 
compile.

module testD;
import std.stream;
import std.stdio;
import std.variant;

interface A {
        void func1();
}
class AC: A {
        void func1() {
                writeln("func1");
        }
}
int main() {
        A a = new AC();
        a.func1();
        Variant b = Variant(a);
        return 0;
}

It says that opEquals is not defined for the interface.

Thanks & Regards
Mandeep