code: def setRefreshBlocked(self, blocked):
          
          wasBlocked = self._refreshBlocked
          logger.debug("Setting refreshBlocked from {} to {}".format(wasBlocked, blocked))
          self._refreshBlocked = blocked
          return wasBlocked
docs: Set to True to indicate that set the configuration should not be updated.
              This setting is part of the model so that is shared by all CTIs.
              Returns the old value.