unitDescription The description of ruler units (NSString). Declarationstatic let unitDescription: NSAccessibility.Attribute See AlsoAttributesactivationPointallowedValuesalternateUIVisibleautoInteractableAttributeblockQuoteLevelAttributecancelButtonchildrenchildrenInNavigationOrderAttributeclearButtoncloseButtoncolumnCountcolumnHeaderUIElementscolumnIndexRangecolumnTitlescolumns