JSONString interface allows a toJSONString() method so that a class can change the
* behavior of JSONObject.toString(), JSONArray.toString(), and
* JSONWriter.value(Object). The toJSONString method will be used instead of the
* default behavior of using the Object's toString() method and quoting the result.
*/
public interface JSONString {
/**
* The toJSONString method allows a class to produce its own JSON serialization.
*
* @return A strictly syntactically correct JSON text.
*/
public String toJSONString();
}