Method add_flag

tools/python-3.11.9-amd64/Lib/mailbox.py:1561–1563

Set the given flag(s) without changing others.

(self, flag)

        self._info = '2,' + ''.join(sorted(flags))

    def add_flag(self, flag):
        """Set the given flag(s) without changing others."""
        self.set_flags(''.join(set(self.get_flags()) | set(flag)))

    def remove_flag(self, flag):
        """Unset the given string flag(s) without changing others."""