func libWithSealogMain() {
	defer library.FlushLog()
	defer log.Flush()
	loadAppConfig()
	log.Info("App started")
	log.Info("Config loaded")

	// Disable library log
	log.Info("* Disabled library log test")
	library.DisableLog()
	calcF2()
	log.Info("* Disabled library log tested")

	// Use a special logger for library
	log.Info("* Special output test")
	specialOutputConfig()
	calcF2()
	log.Info("* Special output tested")

	// Use the same logger for both app and library
	log.Info("* Same output test")
	sameOutputConfig()
	calcF2()
	log.Info("* Same output tested")

	log.Info("App finished")
}
func libWithoutSealogMain() {
	library.SetLogWriter(console)
	calcF1()
	library.FlushLog()
}