code: def select_storage_for(cls, section_name, storage):
          
          section_storage = storage
          storage_name = cls.get_storage_name_for(section_name)
          if storage_name:
              section_storage = storage.get(storage_name, None)
              if section_storage is None:
                  section_storage = storage[storage_name] = dict()
          return section_storage
docs: Selects the data storage for a config section within the
          :param:`storage`. The primary config section is normally merged into
          the :param:`storage`.
  
          :param section_name:    Config section (name) to process.
          :param storage:         Data storage to use.
          :return: :param:`storage` or a part of it (as section storage).