code: public function unwatch()
      {
          if (!$this->client->getCommandFactory()->supportsCommand('UNWATCH')) {
              throw new NotSupportedException(
                  'UNWATCH is not supported by the current command factory.'
              );
          }
  
          $this->state->unflag(MultiExecState::WATCH);
          $this->__call('UNWATCH', array());
  
          return $this;
      }
docs: Executes UNWATCH.
  
  @throws NotSupportedException
  
  @return MultiExec