Signature of Method Forms/Container::extensionMethod should respect variable numbers of Arguments #355

Parameter #2 $callback of static method Nette\Forms\Container::extensionMethod() expects callable(Nette\Forms\Container): mixed, Closure(Nette\Forms\Container, string, string|Stringable|null=, string=): XYZInput given. 
💡 Parameter #2 $name of passed callable is required but accepting callable does not have that parameter. It will be called without it.PHPStan[argument.type](https://phpstan.org/error-identifiers/argument.type)

class XYZExtension extends CompilerExtension
{
  public function afterCompile(ClassType $class): void
  {
    $class->getMethod('initialize')
      ->addBody('\XYZExtension::register();');
  }

  /**
   * Register addXYZ() on every form Container.
   */
  public static function register(): void
  {
    Container::extensionMethod(
      'addXYZ,
      function (
        Container $container,
        string $name,
        string|Stringable|null $label = null,
        string $anotherParam = '',
      ): XYZInput {
        $control = new XYZInput($label, $anotherParam);
        $container->addComponent($control, $name);
        return $control;
      }
    );
  }
}

/** @param callable(static, ...mixed): mixed  $callback */
public static function extensionMethod(string $name, callable $callback): void