code: def append(self, tag):
          '''
              append - Append an item to this tag collection
  
              @param tag - an AdvancedTag
          '''
          list.append(self, tag)
          self.uids.add(tag.uidf append(self, tag):
          '''
              append - Append an item to this tag collection
  
              @param tag - an AdvancedTag
          '''
          list.append(self, tag)
          self.uids.add(tag.uid)
docs: append - Append an item to this tag collection
  
              @param tag - an AdvancedTag