code: def as_xml(self,parent):
          
          if self.value in ("public","private","confidental"):
              n=parent.newChild(None,self.name.upper(),None)
              n.newChild(None,self.value.upper(),None)
              return n
          return None
docs: Create vcard-tmp XML representation of the field.
  
          :Parameters:
              - `parent`: parent node for the element
          :Types:
              - `parent`: `libxml2.xmlNode`
  
          :return: xml node with the field data.
          :returntype: `libxml2.xmlNode`