logger

type Formatter struct {
	// FieldsOrder - default: fields sorted alphabetically
	FieldsOrder []string

	// TimestampFormat - default: time.StampMilli = "Jan _2 15:04:05.000"
	TimestampFormat string

	// HideKeys - show [fieldValue] instead of [fieldKey:fieldValue]
	HideKeys bool

	// NoColors - disable colors
	NoColors bool

	// NoFieldsColors - apply colors only to the level, default is level + fields
	NoFieldsColors bool

	// NoFieldsSpace - no space between fields
	NoFieldsSpace bool

	// ShowFullLevel - show a full level [WARNING] instead of [WARN]
	ShowFullLevel bool

	// NoUppercaseLevel - no upper case for level value
	NoUppercaseLevel bool

	// TrimMessages - trim whitespaces on messages
	TrimMessages bool

	// CallerFirst - print caller info first
	CallerFirst bool

	// CustomCallerFormatter - set custom formatter for caller info
	CustomCallerFormatter func(*runtime.Frame) string
}