Nette\PhpGenerator\Method::addBody PHP Метод

    public function addBody($statement, array $args = NULL)
    {
        $this->body .= (func_num_args() > 1 ? Helpers::formatArgs($statement, $args) : $statement) . "\n";
        return $this;
    }

 /**
  * @param Method $initialize
  * @param $config
  * @param $method
  * @param $defaults
  */
 private function registerSelectBox(Method $initialize, $config, $method, $defaults)
 {
     $codes = count($config['codes']) == 0 ? $defaults : (array) $config['codes'];
     $list = array();
     foreach ($codes as $code) {
         $lowercase = strtolower($code);
         $list[$lowercase] = $config['prefix'] . $lowercase;
     }
     $initialize->addBody(GenericSelectBox::class . '::register(?,?);', array($method, $list));
 }