Get a SSHUserAuthClient object to use for authentication

        @param user: The username to authenticate for
        @param connection: The connection service to start after authentication

def _getUserAuthObject(self, user, connection):
        """Get a SSHUserAuthClient object to use for authentication

        @param user: The username to authenticate for
        @param connection: The connection service to start after authentication
        """
        credentials = self._getCredentials(user)
        userAuthObject = AutomaticUserAuthClient(user, connection, **credentials)
        return userAuthObject