func (g *Glg) CustomLogFunc(level string, f func() string) error {
	lv := g.TagStringToLevel(level)
	if g.isModeEnable(lv) {
		return g.out(lv, "%s", f())
	}
	return nil
}
func (g *Glg) CustomLogFunc(level string, f func() string) error {
	lv := g.TagStringToLevel(level)
	if g.isModeEnable(lv) {
		return g.out(lv, "%s", f())
	}
	return nil
}
func ( g * Glg ) CustomLogFunc ( level string , f func ( ) string ) error { lv := g . TagStringToLevel ( level ) if g . isModeEnable ( lv ) { return g . out ( lv , " " , f ( ) ) } return nil }
// CustomLogFunc outputs custom level log returned from the function
CustomLogFunc outputs custom level log returned from the function