func (g *Glg) SuccessFunc(f func() string) error {
	if g.isModeEnable(OK) {
		return g.out(OK, "%s", f())
	}
	return nil
}
func (g *Glg) SuccessFunc(f func() string) error {
	if g.isModeEnable(OK) {
		return g.out(OK, "%s", f())
	}
	return nil
}
func ( g * Glg ) SuccessFunc ( f func ( ) string ) error { if g . isModeEnable ( OK ) { return g . out ( OK , " " , f ( ) ) } return nil }
// SuccessFunc outputs Success level log returned from the function
SuccessFunc outputs Success level log returned from the function