logger

type Config struct {
	FilePath         string `koanf:"file_path"`
	UseLocalTime     bool   `koanf:"use_local_time"`
	FileMaxSizeInMB  int    `koanf:"file_max_size_in_mb"`
	FileMaxAgeInDays int    `koanf:"file_max_age_in_days"`
	MaxBackup        int    `koanf:"max_backup"`
	Compress         bool   `koanf:"compress"`
}