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<?php
namespace Drupal\Core\Controller;
use Symfony\Component\Routing\Route;
use Symfony\Component\HttpFoundation\Request;
/**
* Defines a class which knows how to generate the title from a given route.
*/
interface TitleResolverInterface {
/**
* Returns a static or dynamic title for the route.
*
* If the returned title can contain HTML that should not be escaped it should
* return a render array, for example:
* @code
* ['#markup' => 'title', '#allowed_tags' => ['em']]
* @endcode
* If the method returns a string and it is not marked safe then it will be
* auto-escaped.
*
* @param \Symfony\Component\HttpFoundation\Request $request
* The request object passed to the title callback.
* @param \Symfony\Component\Routing\Route $route
* The route information of the route to fetch the title.
*
* @return array|string|\Stringable|null
* The title for the route.
*/
public function getTitle(Request $request, Route $route);
}
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