code: public function get($name)
      {
          if (!isset($this->httpHandlers[$name])) {
              throw new \Exception("HttpHandler {$name} not found");
          }
  
          return $this->httpHandlers[$name];
      }
docs: Ger http handler by name.
  
  @param string $name
  
  @throws \Exception
  
  @return HttpHandler