AS3 Flash - Save movieclip as png - image

I use AS3 flash. Can someone help me? I want that if you press the save_image button, then it saves "guy" movieclip as png. But It's not work:
import com.adobe.images.JPGEncoder;
import com.adobe.images.PNGEncoder
save_image.addEventListener(MouseEvent.CLICK, save_image_function);
function save_image_function(event:MouseEvent):void
{
var bmd:BitmapData = new BitmapData(50,50);
bmd.draw(guy);
var encorder:PNGEncoder = new PNGEncoder();
var bytes:ByteArray = encorder.encode(bmd);
var file:FileReference = new FileReference();
file.save( bytes, "Image.png" );
}
Can someone help me? The error code is this:
ReferenceError: Error #1069: Property encode not found on com.adobe.images.PNGEncoder and there is no default value.
at pr2sets_fla::MainTimeline/save_image_function()

The encode method is static, you need to call it this way.
var bytes:ByteArray = PNGEncoder.encode( bmd );

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