How to get to run the stage in a subclass

programming flash
1

I try to run the function stage in class it is not working.

package [COLOR=Red]devilClass.Player[/COLOR]{
    import flash.display.*;
    import flash.events.*;
    public class test extends MovieClip {
        public function test(){
            trace(stage.displayState);
        }
        
    }
}

but Call class stage in main Class it working , because???

package{
    import flash.display.*;
    import flash.events.*;
    public class test extends MovieClip {
        public function test(){
            trace(stage.displayState);
        }
        
    }
}

Is there a way to call class stage in a class Import?