code: def parse_value_reference(self, tup_tree):
          
  
          self.check_node(tup_tree, 'VALUE.REFERENCE')
  
          child = self.one_child(tup_tree,
                                 ('CLASSPATH', 'LOCALCLASSPATH', 'CLASSNAME',
                                  'INSTANCEPATH', 'LOCALINSTANCEPATH',
                                  'INSTANCENAME'))
  
          return child
docs: Parse a VALUE.REFERENCE element and return the instance path or class
          path it represents as a CIMInstanceName or CIMClassName object,
          respectively.
  
            ::
  
              <!ELEMENT VALUE.REFERENCE (CLASSPATH | LOCALCLASSPATH | CLASSNAME |
                                         INSTANCEPATH | LOCALINSTANCEPATH |
                                         INSTANCENAME)>