def fireTransitionToward(state, comment=None, side_effect=None,
    check_security=True):
    """Fire transition toward state.

        Looks up a manual transition that will get to the indicated
        state.

        If no such transition is possible, NoTransitionAvailableError will
        be raised.

        If more than one manual transitions are possible,
        AmbiguousTransitionError will be raised.
        """
