Question on packages and namespaces

Hi, I just wondered today if i can override functions declared in a namespace in packages, like this:

package myPackage
{
    function GameConnection::onClientEnterGame(%this)
    {
    }
};

If this works, my biggest question is how to call the package parent's function, would it be like this:?

Parent::GameConnection::onClientEnterGame();

or just:

Parent::onClientEnterGame();

or do I have to provide the %this 'cause of the package?