toJson method

@override Map<String, dynamic> toJson()

Serializes format as a single string when only one value is present, matching the spec's "String or Array" definition.

Implementation

@override
Map<String, dynamic> toJson() {
  final json = <String, dynamic>{}
    ..put('copy', copy)
    ..put('print', printAllowed)
    ..put('tts', tts)
    ..putOpt('devices', devices);
  if (formats.length == 1) {
    json['format'] = formats.first;
  } else if (formats.isNotEmpty) {
    json['format'] = formats;
  }
  return json;
}