import std.stdio;
interface A
{
    final void run() {writeln(0);}
}
interface B
{
    final void run() {writeln(1);}
}
class C : A, B
{
}

void main()
{
    auto t = new C;
    t.run();   // always calls the version of the interface listed first
    t.A.run(); // Error: no property 'A' for type 'test.C'
    t.B.run(); // Error: no property 'B' for type 'test.C'
}