waiter

type RefreshFunc func() (result interface{}, state string, err error)

type StateWaiter struct {
	Pending      []string
	Target       []string
	Refresh      RefreshFunc
	Delay        time.Duration
	Timeout      time.Duration
	MinTimeout   time.Duration
	PollInterval time.Duration
}

type TimeoutError struct {
	LastError      error
	LastState      string
	Timeout        time.Duration
	ExpectedStates []string
}