notifier

type DiffCache struct {
	Deleted map[string]flag.Flag   `json:"deleted"`
	Added   map[string]flag.Flag   `json:"added"`
	Updated map[string]DiffUpdated `json:"updated"`
}

type DiffUpdated struct {
	Before flag.Flag `json:"old_value"`
	After  flag.Flag `json:"new_value"`
}

type Notifier interface {
	// Notify is the function doing all the work when a Notifier is called.
	Notify(cache DiffCache) error
}