toJson method
Implementation
Map<String, Object?> toJson() {
final is$ = this.is$;
final key = this.key;
final pattern = this.pattern;
final value = this.value;
return {
if (is$ != null) 'is': is$,
if (key != null) 'key': key,
'kind': kind,
if (pattern != null) 'pattern': pattern,
if (value != null) 'value': value,
};
}