code: public function render(DataBuilder $data_builder, $parameters, array $data = [])
      {
          $parameters = $this->castParameters($parameters);
  
          $tm = new TemplateManager();
  
          $result = new Result();
  
          try {
              $bag = new Bag($parameters);
  
              $bag->set('body', $tm->renderRaw('text/html', strval($bag->get('body')), $data));
  
              $attachments = [];
  
              foreach ((array) Yaml::parse(strval($bag->get('attachments'))) as $key => $attachment) {
                  $attachment = (object) $attachment;
  
                  $attachments[$key]['as'] = strval($tm->renderRaw('text/plain', $attachment->as, $data));
  
                  $attachments[$key]['source'] = strval($tm->renderRaw('text/plain', $attachment->source, $data));
              }
  
              $bag->set('attachments', $attachments);
  
              $bag->set('recipients', explode(',', $tm->renderRaw('text/plain', strval($bag->get('recipients')), $data)));
              $bag->set('subject', $tm->renderRaw('text/plain', strval($bag->get('subject')), $data));
              $bag->set('sender', $tm->renderRaw('text/plain', strval($bag->get('sender')), $data));
  
              $result->setResources(new Collection([$bag->toArray()]));
          } catch (\Twig_Error $e) {
              $e = new Exceptions\EmailSenderRenderException($e->getRawMessage().' on line '.$e->getTemplateLine());
  
              $result->addErrors(new Collection([$e]));
          }
  
          return $result;
      }
docs: Render an email.
  
  @param DataBuilder $data_builder
  @param array       $parameters
  @param array       $data
  
  @return \Railken\Lem\Contracts\ResultContract