global class JSON { global JSON() { } global Object clone() { } global static System.JSONGenerator createGenerator(Boolean pretty) { } global static System.JSONParser createParser(String jsonString) { } global static Object deserialize(String jsonString, System.Type apexType) { } global static Object deserializeStrict(String jsonString, System.Type apexType) { } global static Object deserializeUntyped(String jsonString) { } global static String serialize(Object o, Boolean suppressApexObjectNulls) { } global static String serialize(Object o) { } global static String serializePretty(Object o, Boolean suppressApexObjectNulls) { } global static String serializePretty(Object o) { } }