bool async

Source 

@DomName('HTMLScriptElement.async')
@DocsEditable()
bool get async => _blink.BlinkHTMLScriptElement.instance.async_Getter_(this);
void async=(bool value)

Source 

@DomName('HTMLScriptElement.async')
@DocsEditable()
set async(bool value) =>
    _blink.BlinkHTMLScriptElement.instance.async_Setter_(this, value);