code: def parse_parameter_reference(self, tup_tree):
          
  
          self.check_node(tup_tree, 'PARAMETER.REFERENCE', ('NAME',),
                          ('REFERENCECLASS',), ('QUALIFIER',))
  
          attrl = attrs(tup_tree)
  
          qualifiers = self.list_of_matching(tup_tree, ('QUALIFIER',))
  
          return CIMParameter(attrl['NAME'],
                              type='reference',
                              is_array=False,
                              reference_class=attrl.get('REFERENCECLASS', None),
                              qualifiers=qualifiers,
                              embedded_object=False)
docs: ::
  
              <!ELEMENT PARAMETER.REFERENCE (QUALIFIER*)>
              <!ATTLIST PARAMETER.REFERENCE
                  %CIMName;
                  %ReferenceClass;>