determine
public static JSONObjectType.Type determine(twitter4j.internal.org.json.JSONObject json)
Determine the respective object type for a given JSONObject.  This
 method inspects the object to figure out what type of object it
 represents.  This is useful when processing JSON events of mixed type
 from a stream, in which case you may need to know what type of object
 to construct, or how to handle the event properly.
- Parameters:
 json - the JSONObject whose type should be determined 
- Returns:
 - the determined JSONObjectType, or null if not recognized