whenOrNull<TResult extends Object?> method

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? $default(@JsonKey.new(name: 'access_token') String? accessToken, @JsonKey.new(name: 'config_id') String? configId, @JsonKey.new(name: 'config_version') int? configVersion, @JsonKey.new(name: 'event_limit') int? eventLimit, @JsonKey.new(name: 'resumed_chat_group_id') String? resumedChatGroupId, @JsonKey.new(name: 'verbose_transcription') bool? verboseTranscription, @JsonKey.new(name: 'api_key') String? apiKey, @JsonKey.new(name: 'session_settings[audio][channels]') int? audioChannels, @JsonKey.new(name: 'session_settings[audio][encoding]') String? audioEncoding, @JsonKey.new(name: 'session_settings[audio][sample_rate]') int? audioSampleRate, @JsonKey.new(name: 'session_settings[context][text]') String? contextText, @JsonKey.new(name: 'session_settings[context][type]') String? contextType, @JsonKey.new(name: 'session_settings[custom_session_id]') String? customSessionId, @JsonKey.new(name: 'session_settings[event_limit]') int? sessionEventLimit, @JsonKey.new(name: 'session_settings[language_model_api_key]') String? languageModelApiKey, @JsonKey.new(name: 'session_settings[voice_id]') String? voiceId,)?)

A variant of when that fallback to returning null

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return null;
}

Implementation

@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function(@JsonKey(name: 'access_token')  String? accessToken, @JsonKey(name: 'config_id')  String? configId, @JsonKey(name: 'config_version')  int? configVersion, @JsonKey(name: 'event_limit')  int? eventLimit, @JsonKey(name: 'resumed_chat_group_id')  String? resumedChatGroupId, @JsonKey(name: 'verbose_transcription')  bool? verboseTranscription, @JsonKey(name: 'api_key')  String? apiKey, @JsonKey(name: 'session_settings[audio][channels]')  int? audioChannels, @JsonKey(name: 'session_settings[audio][encoding]')  String? audioEncoding, @JsonKey(name: 'session_settings[audio][sample_rate]')  int? audioSampleRate, @JsonKey(name: 'session_settings[context][text]')  String? contextText, @JsonKey(name: 'session_settings[context][type]')  String? contextType, @JsonKey(name: 'session_settings[custom_session_id]')  String? customSessionId, @JsonKey(name: 'session_settings[event_limit]')  int? sessionEventLimit, @JsonKey(name: 'session_settings[language_model_api_key]')  String? languageModelApiKey, @JsonKey(name: 'session_settings[voice_id]')  String? voiceId)?  $default,) {final _that = this;
switch (_that) {
case _QueryParameters() when $default != null:
return $default(_that.accessToken,_that.configId,_that.configVersion,_that.eventLimit,_that.resumedChatGroupId,_that.verboseTranscription,_that.apiKey,_that.audioChannels,_that.audioEncoding,_that.audioSampleRate,_that.contextText,_that.contextType,_that.customSessionId,_that.sessionEventLimit,_that.languageModelApiKey,_that.voiceId);case _:
  return null;

}
}