code: def append_items(self, items, **kwargs):
          
          rv = self.append_multi(items, **kwargs)
          # Assume this is an 'ItemOptionDict'
          for k, v in items.dict.items():
              if k.success:
                  k.value += v['fragment']
  
          return rv
docs: Method to append data to multiple :class:`~.Item` objects.
  
          This method differs from the normal :meth:`append_multi` in that
          each `Item`'s `value` field is updated with the appended data
          upon successful completion of the operation.
  
  
          :param items: The item dictionary. The value for each key should
              contain a ``fragment`` field containing the object to append
              to the value on the server.
          :type items: :class:`~couchbase.items.ItemOptionDict`.
  
          The rest of the options are passed verbatim to
          :meth:`append_multi`
  
          .. seealso:: :meth:`append_multi`, :meth:`append`