def addUser(user, password):
        """
        Add a user to this domain.

        @type user: L{bytes}
        @param user: A username.

        @type password: L{bytes}
        @param password: A password.
        """

        Add a user to this domain.

        @type user: L{bytes}
        @param user: A username.

        @type password: L{bytes}
        @param password: A password.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/mail/interfaces.py