Dart APIunself_componentChipEmojiisEnabled isEnabled property Null safety bool isEnabled Implementation bool get isEnabled => onSelected != null; unself_component unself_component ChipEmoji isEnabled property ChipEmoji class Constructors ChipEmoji Properties emoji hashCode isEnabled key onSelected runtimeType selected Methods build createElement debugDescribeChildren debugFillProperties noSuchMethod toDiagnosticsNode toString toStringDeep toStringShallow toStringShort Operators operator ==