code: def remove_entry(self, entry = None):
          
          
          if entry is None or type(entry) is not v1Entry:
              raise KPError("Need an entry.")
          elif entry in self.entries:
              entry.group.entries.remove(entry)
              self.entries.remove(entry)
              self._num_entries -= 1
              return True
          else:
              raise KPError("Given entry doesn't exist.")
docs: This method can remove entries.
          
          The v1Entry-object entry is needed.