code: def _get(self, key):
          
          buf = BytesIO()
  
          self._get_file(key, buf)
  
          return buf.getvalue()
docs: Implementation for :meth:`~simplekv.KeyValueStore.get`. The default
          implementation will create a :class:`io.BytesIO`-buffer and then call
          :meth:`~simplekv.KeyValueStore._get_file`.
  
          :param key: Key of value to be retrieved