func (app *App) available() bool {
	units, err := app.Units()
	if err != nil {
		return false
	}
	for _, unit := range units {
		if unit.Available() {
			return true
		}
	}
	return false
}
func (app *App) available() bool {
	units, err := app.Units()
	if err != nil {
		return false
	}
	for _, unit := range units {
		if unit.Available() {
			return true
		}
	}
	return false
}
func ( app * App ) available ( ) bool { units , err := app . Units ( ) if err != nil { return false } for _ , unit := range units { if unit . Available ( ) { return true } } return false }
// available returns true if at least one of N units is started or unreachable.
available returns true if at least one of N units is started or unreachable .