code: public function execute(array $arguments = array())
      {
          $buffer = new SingleBufferAdapter();
  
          $this->builder->addTarget($buffer);
  
          $processor = new SequentialProcessor();
          $processor->addProcedure($this->builder->getProcedure());
  
          $processor->process();
  
          return $buffer->receive(new Request());
      }
docs: {@inheritdoc}