def flagsChanged(newFlags):
        """
        Indicates that the flags of one or more messages have changed.

        @type newFlags: L{dict}
        @param newFlags: A mapping of message identifiers to tuples of flags
            now set on that message.
        """

        Indicates that the flags of one or more messages have changed.

        @type newFlags: L{dict}
        @param newFlags: A mapping of message identifiers to tuples of flags
            now set on that message.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/mail/interfaces.py