NullValue is a singleton enumeration to represent the null value for the Value type union. The JSON representation for NullValue is JSON null. - NULL_VALUE: Null value.
NULL_VALUE(value:'NULL_VALUE')
NullValue is a singleton enumeration to represent the null value for the Value type union. The JSON representation for NullValue is JSON null. - NULL_VALUE: Null value.
NULL_VALUE (value: 'NULL_VALUE')