[Solved] How can I get access to service variables?

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public function pages($slug, PagesGenerator $pagesGenerator)
{
    $output = $pagesGenerator->getPages($slug);

    // here is your error: $page is not defined.
    $id = $page->getId();

    // something like this?
    $id = $output['page']->getId();

    return $this->render('list.html.twig', [ 'output' => $output,  'id' => $id]);
}

solved How can I get access to service variables?