Clue\React\Redis\StreamingClient::__call PHP Method

    public function __call($name, $args)
    {
        $request = new Deferred();
        $promise = $request->promise();
        $name = strtolower($name);
        // special (p)(un)subscribe commands only accept a single parameter and have custom response logic applied
        static $pubsubs = array('subscribe', 'unsubscribe', 'psubscribe', 'punsubscribe');
        if ($this->ending) {
            $request->reject(new RuntimeException('Connection closed'));
        } elseif (count($args) !== 1 && in_array($name, $pubsubs)) {
            $request->reject(new InvalidArgumentException('PubSub commands limited to single argument'));
        } else {
            $this->stream->write($this->serializer->getRequestMessage($name, $args));
            $this->requests[] = $request;
        }
        if ($name === 'monitor') {
            $monitoring =& $this->monitoring;
            $promise->then(function () use(&$monitoring) {
                $monitoring = true;
            });
        } elseif (in_array($name, $pubsubs)) {
            $that = $this;
            $subscribed =& $this->subscribed;
            $psubscribed =& $this->psubscribed;
            $promise->then(function ($array) use($that, &$subscribed, &$psubscribed) {
                $first = array_shift($array);
                // (p)(un)subscribe messages are to be forwarded
                $that->emit($first, $array);
                // remember number of (p)subscribe topics
                if ($first === 'subscribe' || $first === 'unsubscribe') {
                    $subscribed = $array[1];
                } else {
                    $psubscribed = $array[1];
                }
            });
        }
        return $promise;
    }

 /**
  * @param $name
  * @param $arguments
  * @return AnonymousObservable
  */
 public function __call($name, array $arguments = [])
 {
     $promise = $this->client->__call($name, $arguments);
     return Observable::defer(function () use($promise) {
         $subject = new AsyncSubject();
         $promise->then(function ($data) use($subject) {
             $subject->onNext($data);
             $subject->onCompleted();
         }, [$subject, "onError"]);
         return $subject;
     });
 }