code: def recv_keys(self, *keyids, **kwargs):
          
          if keyids:
              keys = ' '.join([key for key in keyids])
              return self._recv_keys(keys, **kwargs)
          else:
              log.error("No keyids requested for --recv-keys!")
docs: Import keys from a keyserver.
  
          >>> gpg = gnupg.GPG(homedir="doctests")
          >>> key = gpg.recv_keys('3FF0DB166A7476EA', keyserver='hkp://pgp.mit.edu')
          >>> assert key
  
          :param str keyids: Each ``keyids`` argument should be a string
               containing a keyid to request.
          :param str keyserver: The keyserver to request the ``keyids`` from;
               defaults to `gnupg.GPG.keyserver`.