code: public Map<String, String> toMap() {
          Map<String, String> map = new HashMap<>();
  
          map.put("message", message);
          map.put("country-code", countryCode);
          map.put("url", url);
  
          return map;
      }
docs: Map a Token instance to its Java's Map representation.
  
  @return a Java's Map with the description of this object.