Type Definition extfsm::EntryExitTransitionFn

type EntryExitTransitionFn<ExtendedState, EventType, StateType, TransitionFnArguments, ErrorType> = Fn(RefMut<Box<ExtendedState>>) -> TransitionResult<EventType, StateType, TransitionFnArguments, ErrorType>;

transition function to either enter or exit a specific state, return same as FSMTransitionFn