Passing the timeline to a class

Suppose I have the following class

package {

    import flash.display.Stage;

    public class CustomObject {

        private var stage:Stage;

        public function CustomObject(stageRef:Stage) {

            // stage access through
            // constructor argument
            stage = stageRef;
        }
    }
}

Which is not a document class. I wish to pass the stage of the main timeline into the class, say on frame 1

stop();
var c:CustomObject = new CustomObject(this.stage);

Is this the right way of passing the stage of the main timeline into another class?