code: public function initialize(\AMQPExchange $exchange = null)
      {
          if (null == $exchange) {
              $exchange = new \AMQPExchange($this->channel->getWrappedChannel());
          }
  
          $this->exchange = $exchange;
          $this->exchange->setName($this->getName());
          $this->exchange->setType($this->context->getType());
          $this->exchange->setArguments($this->context->getArguments());
          $this->exchange->setFlags((int) $this->context->getFlags());
          $this->exchange->declareExchange();
          $this->initialized = true;
      }
docs: @param \AMQPExchange|null $exchange
  
  @throws HectorException