How to use the imapclient.imap_utf7.encode function in IMAPClient

def test_printable_singletons(self):
        """
        The IMAP4 modified UTF-7 implementation encodes all printable
        characters which are in ASCII using the corresponding ASCII byte.
        """
        # All printables represent themselves
        for o in list(range(0x20, 0x26)) + list(range(0x27, 0x7f)):
            self.assertEqual(int2byte(o), encode(unichr(o)))
            self.assertEqual(unichr(o), decode(int2byte(o)))
        self.assertEqual(encode('&'), b'&-')
        self.assertEqual(encode('&'), b'&-')
        self.assertEqual(decode(b'&-'), '&')

def test_encode(self):
        for (input, output) in self.tests:
            encoded = encode(input)
            self.assertIsInstance(encoded, binary_type)
            self.assertEqual(encoded, output)

def test_printable_singletons(self):
        """
        The IMAP4 modified UTF-7 implementation encodes all printable
        characters which are in ASCII using the corresponding ASCII byte.
        """
        # All printables represent themselves
        for o in list(range(0x20, 0x26)) + list(range(0x27, 0x7f)):
            self.assertEqual(int2byte(o), encode(unichr(o)))
            self.assertEqual(unichr(o), decode(int2byte(o)))
        self.assertEqual(encode('&'), b'&-')
        self.assertEqual(encode('&'), b'&-')
        self.assertEqual(decode(b'&-'), '&')

else:
      logger.info("logging into account %r via oauth", details['id'])

  if do_oauth:
    xoauth_string = xoauth.GenerateXOauthStringFromAcctInfo('imap', details)
    try:
      ret._imap.authenticate('XOAUTH', lambda x: xoauth_string)
    except ret.Error, exc:
      raise IMAP4AuthException(account.OAUTH, exc.args[0])
  else:
    if 'username' not in details or 'password' not in details:
      raise ValueError, "Account has no username or password"
    # XXX - is this encoding of 'username' correct?  We've already determined
    # experimentally it is *not* correct for the password...
    try:
      ret.login(encode_imap_utf7(details['username']), details['password'])
    except ret.Error, exc:
      raise IMAP4AuthException(account.PASSWORD, exc.args[0])
  account.reportStatus(brat.EVERYTHING, brat.GOOD)
  return ret

def _normalise_folder(self, folder_name):
        if isinstance(folder_name, binary_type):
            folder_name = folder_name.decode('ascii')
        if self.folder_encode:
            folder_name = encode_utf7(folder_name)
        return _quote(folder_name)

def _normalise_labels(self, labels):
        if isinstance(labels, (text_type, binary_type)):
            labels = (labels,)
        return [_quote(encode_utf7(l)) for l in labels]