code: def export_keys(self, keyids, secret=False, subkeys=False):
          
          which = ''
          if subkeys:
              which = '-secret-subkeys'
          elif secret:
              which = '-secret-keys'
  
          if _is_list_or_tuple(keyids):
              keyids = ' '.join(['%s' % k for k in keyids])
  
          args = ["--armor"]
          args.append("--export{0} {1}".format(which, keyids))
  
          p = self._open_subprocess(args)
          ## gpg --export produces no status-fd output; stdout will be empty in
          ## case of failure
          #stdout, stderr = p.communicate()
          result = self._result_map['export'](self)
          self._collect_output(p, result, stdin=p.stdin)
          log.debug('Exported:%s%r' % (os.linesep, result.fingerprints))
          return result.data.decode(self._encoding, self._decode_errors)
docs: Export the indicated ``keyids``.
  
          :param str keyids: A keyid or fingerprint in any format that GnuPG will
              accept.
          :param bool secret: If True, export only the secret key.
          :param bool subkeys: If True, export the secret subkeys.