closer

var Component = &app.Component{
	Constructor: app.Constructor(func(container container.Container) error {
		return container.Provides(
			NewOsSignal,
			func(closer *OsSignal) Closer { return closer },
		)
	}),
	Serve: app.ServeChan(func(container container.Container, isServeChan chan struct{}) error {
		return container.Invoke(func(closer *OsSignal) {
			isServeChan <- struct{}{}
			closer.Serve()
		})
	}),
}