Animating font size with Actuate

Was trying to animate a textformat font size with: Actuate.tween(TEMPOEXTRATEXTFORMAT, 2, { size: 130 }, false).delay(0.5);

but it’s a no go, is there a way I can do this with Actuate at all ?

Actuate.tween(TEMPOEXTRATEXTFORMAT, 2, { size : 130 }, false).onUpdate (TEMPOEXTRA.defaultTextFormat=TEMPOEXTRATEXTFORMAT);

throws [Fault] exception, information=ReferenceError: Error #1069: Property apply not found on flash.text.TextFormat and there is no default value.

So no go still.

Got it working like this:

Actuate.tween(TEMPOEXTRATEXTFORMAT, 2, { size : 165 }).onUpdate (update_tempo_extra_size, null).delay(0.5);

private inline function update_tempo_extra_size()
{
TEMPOEXTRA.setTextFormat(TEMPOEXTRATEXTFORMAT, 0, 2);
}