watcher

type Watcher interface {
	// Add starts watching a file for changes.
	Add(file string) error

	// Remove stops watching a file for changes.
	Remove(file string) error

	// Next blocks until a file system event occurs or the context is canceled.
	// It returns the next event or an error if the watcher encountered a problem.
	Next(context.Context) (*fsnotify.Event, error)

	// Close shuts down the watcher and releases any resources.
	Close() error
}