mixin Inherits( T... )
{
    alias BaseTypes = Alias!T;
    static foreach( Index, ST; T )
    {
        mixin( "ST base" ~ Index.to!string ~ ";" );
    }
    alias base0 this;
}

template IsInheriting( Base, T )
{
    static if( is( T.BaseTypes ) )
    {
        bool Inherits()
        {
            bool inherits = is( T == Base );
            static foreach( ST; T.BaseTypes )
            {
                inherits |= IsInheriting!( Base, ST );
            }
            return inherits;
        }
        enum IsInheriting = Inherits();
    }
    else
    {
        enum IsInheriting = false;
    }
}