where are api of DoTweener's parameters in progression 4.0

by arisu 
like transition:"easeOutElastic", the param and the value where can find in api 
And i use _Blur_blurX, but the project throws error in flex4.5
♥0 | Line 20 | Modified 2012-01-26 12:38:45 | MIT License
play

ActionScript3 source code

/**
 * Copyright arisu ( http://wonderfl.net/user/arisu )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/r8eP
 */

package {
    import flash.text.TextField;
    import flash.display.Sprite;
    import jp.progression.commands.tweens.*;
    /**question**/
    public class FlashTest extends Sprite {
        public function FlashTest() {
            var t:TextField = new TextField;
            new DoTweener(t,{
                        x:150,
                        y:150, 
                        alpha:1, 
                        _Blur_blurX:0, 
                        _Blur_blurY:0,
                        time:1, 
                        delay:0, 
                        transition:"easeOutElastic"
                }).execute();
            
        }
    }
}