num startTime

Source 

@DomName('Animation.startTime')
@DocsEditable()
@Experimental() // untriaged
num get startTime => _blink.BlinkAnimation.instance.startTime_Getter_(this);
void startTime=(num value)

Source 

@DomName('Animation.startTime')
@DocsEditable()
@Experimental() // untriaged
set startTime(num value) =>
    _blink.BlinkAnimation.instance.startTime_Setter_(this, value);