let myState = State("MyState")

let fromState = State("FromState")
let toState = State("ToState")

let myTransition = Transition("MyTransition", from: fromState, to: toState)

beforeTransition(transition)

leaveState(state)

onState(state)

onTransition(transition)

let stateA = State("StateA")
let stateB = State("StateB")

let transitionA = Transition("TransitionA", from: stateA, to: stateB)
let transitionB = Transition("TransitionB", from: stateB, to: stateA)

let stateMachine = StateMachine(initialState: stateA, transitions: [transitionA, transitionB]

do {
    stateMachine.fire(transition: transitionB, userInfo: nil)
} catch TransitionError.unknown {
    print("Transition unknown)
} catch TransitionError.notAllowed {
    print("Transition not allowed")
} 

stateMachine.on(.onState(stateB), queue: observeQueue) { (userInfo) in
            
}

let isCurrent = stateMachine.isCurrent(state: myState)

let canFire = stateMachine.canFire(transition: myTransition)

let allowedTransitions = stateMachine.allowedTransitions()

let stateA = stateMachine.state(name: "stateA")

let states = stateMachine.allStates()

let transitionA = stateMachine.transition(name: "transitionA")

let transitions = stateMachine.allTransitions()