Object duration

Source 

@DomName('AnimationEffectTiming.duration')
@DocsEditable()
@Experimental() // untriaged
Object get duration =>
    (_blink.BlinkAnimationEffectTiming.instance.duration_Getter_(this));
void duration=(Object value)

Source 

@DomName('AnimationEffectTiming.duration')
@DocsEditable()
@Experimental() // untriaged
set duration(Object value) =>
    _blink.BlinkAnimationEffectTiming.instance.duration_Setter_(this, value);