abstract class CustomMessageModel {
  abstract String businessID;

  String toJson();
}

class CustomMessageType {
  // ignore: constant_identifier_names
  static const String NAME_CARD = 'name_card';
  // ignore: constant_identifier_names
  static const String GROUP_CARD = 'group_card';
  // ignore: constant_identifier_names
  static const String DT_TRANSFER = 'dt_transfer';
  // ignore: constant_identifier_names
  static const String TYPING_STATUS = 'user_typing_status';
  // ignore: constant_identifier_names
  static const String EVALUATION = 'evaluation';
  // ignore: constant_identifier_names
  static const String CALL = '1';
}

class CallingType {
  static const String audioCall = 'audioCall';
  static const String videoCall = 'videoCall';
}