docs: def RemoveClientLabels(self, client):
      """Removes all labels for a given client object.
  
      Args:
        client: A VFSGRRClient record.
      """
      keywords = []
      for label in client.GetLabelsNames():
        keyword = self._NormalizeKeyword(utils.SmartStr(label))
        # This might actually delete a keyword with the same name as the label (if
        # there is one). Usually the client keywords will be rebuilt after the
        # deletion of the old labels though, so this can only destroy historic
        # index data; normal search functionality will not be affected.
        keywords.append(keyword)
        keywords.append("label:%s" % keyword)
  
      self.RemoveKeywordsForName(self._ClientIdFromURN(client.urn), keywords)