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<?php
declare(strict_types=1);
namespace Drupal\navigation;
/**
* Interface for top bar plugins.
*/
interface TopBarItemPluginInterface {
/**
* Returns the translated plugin label.
*
* @return string|\Stringable
* The translated plugin label.
*/
public function label(): string|\Stringable;
/**
* Returns the plugin region.
*
* @return \Drupal\navigation\TopBarRegion
* The plugin region.
*/
public function region(): TopBarRegion;
/**
* Builds and returns the renderable array for this top bar item plugin.
*
* If a top bar item should not be rendered because it has no content, then
* this method must also ensure to return no content: it must then only return
* an empty array, or an empty array with #cache set (with cacheability
* metadata indicating the circumstances for it being empty).
*
* @return array
* A renderable array representing the content of the top bar item.
*/
public function build();
}
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