func Marshal(obj interface{}) string {
	//b, err := json.Marshal(obj)
	b, err := json.MarshalIndent(obj, "", "  ")
	// Marshal error
	if logger.CheckError(err) {

	}
	return string(b)
}
// Marshal returns string of obj json format.
Marshal returns string of obj json format.
// Marshal returns string of obj json format .
func Marshal(obj interface{}) string {
	b, err := json.MarshalIndent(obj, "", "  ")
	if logger.CheckError(err) {
	}
	return string(b)
}
func Marshal ( obj interface { } ) string { b , err := json . MarshalIndent ( obj , " " , " " ) if logger . CheckError ( err ) { } return string ( b ) }
Marshal returns string of obj json format.
Marshal returns string of obj json format .
//b, err := json.Marshal(obj) // Marshal error