// \as3\SuperClass.as
package as3
{
	public class SuperClass
	{
		protected function someMethod ():Boolean
		{
			return false;
		}
	}
}

// \as3.SubClass.as
package as3
{
	public class SubClass extends SuperClass implements IAmInterface
	{
		override protected function someMethod ():Boolean
		{
			return true;
		}
	}
}

// \as3.IAmInterface
package as3
{
	public interface IAmInterface
	{
		function someMethod ():Boolean;
	}
}

// fla
import as3.*;
new SubClass();