code: def save(self, data):
          
          if self.__nested:
              raise ConfigLoaderException("Cannot save the config if the 'nested' paramter is True!")
  
          if self.__loaded_config_file is None:
              raise ConfigLoaderException("Load not called yet!")
  
          try:
              with open(self.__loaded_config_file, 'w') as f:
                  f.write(self.__formatter.encode(data))
          except Exception as e:
              raise ConfigLoaderException("Config data is not serializable: %s" % e)
docs: Save the config data
  
          Args:
              data: any serializable config data
  
          Raises:
              ConfigLoaderException: if the ConfigLoader.load not called, so there is no config file name,
                                     or the data is not serializable or the loader is nested