how do I import packages

I simply cant seem to import packages like in the .as-file below.
It is placed in the same folder as my .fla-file that is totally empty.
I have been told that I do not have to do anything if the package havent got a name.
The package is an example from the help-menu that should show something, but what should I do in the .fla-file to have it show me the example...

package {
    import flash.geom.Matrix;
    import flash.display.Sprite;
    import flash.display.GradientType;
 
    public class MatrixExample extends Sprite {
 
        public function MatrixExample() {
            var myMatrix:Matrix = new Matrix();
            trace(myMatrix.toString());    // (a=1, b=0, c=0, d=1, tx=0, ty=0)
 
            myMatrix.createGradientBox(200, 200, 0, 50, 50);
            trace(myMatrix.toString());    // (a=0.1220703125, b=0, c=0, d=0.1220703125, tx=150, ty=150)
 
            var colors:Array = [0xFF0000, 0x0000FF];
            var alphas:Array = [100, 100];
            var ratios:Array = [0, 0xFF];
            graphics.beginGradientFill(GradientType.LINEAR, colors, alphas, ratios, myMatrix);
            graphics.lineTo(0, 300);
            graphics.lineTo(300, 300);
            graphics.lineTo(300, 0);
            graphics.lineTo(0, 0);
        }
    }
}

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