bool indeterminate

Source 

@DomName('HTMLInputElement.indeterminate')
@DocsEditable()
bool get indeterminate =>
    _blink.BlinkHTMLInputElement.instance.indeterminate_Getter_(this);
void indeterminate=(bool value)

Source 

@DomName('HTMLInputElement.indeterminate')
@DocsEditable()
set indeterminate(bool value) =>
    _blink.BlinkHTMLInputElement.instance.indeterminate_Setter_(this, value);