1513     def add_flag(self, flag):  member in MaildirMessage
1553                 message.add_flag('R')
1555                 message.add_flag('O')
1557                 message.add_flag('D')
1559                 message.add_flag('F')
1561                 message.add_flag('A')
1638     def add_flag(self, flag):  member in _mboxMMDFMessage
1654                 message.add_flag('F')
1656                 message.add_flag('R')
1658                 message.add_flag('S')
1660                 message.add_flag('T')
1742                 message.add_flag('S')
1744                 message.add_flag('F')
1746                 message.add_flag('R')
1750                 message.add_flag('RO')
1752                 message.add_flag('O')
1754                 message.add_flag('F')
1756                 message.add_flag('A')
1832                 message.add_flag('S')
1834                 message.add_flag('P')
1836                 message.add_flag('R')
1838                 message.add_flag('T')
1842                 message.add_flag('RO')
1844                 message.add_flag('O')
1846                 message.add_flag('D')
1848                 message.add_flag('A')