createConnection static method 
    
    
    
  Implementation
  static Future<String> createConnection({
  required String connectionId,
  required String appId,
  required String authToken,
  required String customerEndUserId,
  required bool useLogger,
  String? callbackUrl,
}) async {
  final result = await _channel.invokeMethod('createConnection', {
    'connectionId': connectionId,
    'appId': appId,
    'authToken': authToken,
    'customerEndUserId': customerEndUserId,
    'useLogger': useLogger,
    'callbackUrl': callbackUrl,
  });
  ExceptionHandler.checkException(result);
  return result;
}