interface CalculatedPermissionsInterface

interface CalculatedPermissionsInterface extends CacheableDependencyInterface {
    
    /**
     * Retrieves a single calculated permission item from a given scope.
     *
     * @param string $scope
     *   (optional) The scope name to get the item for, defaults to 'drupal'.
     * @param string|int $identifier
     *   (optional) The identifier to get the item for, defaults to 'drupal'.
     *
     * @return \Drupal\Core\Session\CalculatedPermissionsItemInterface|false
     *   The calculated permission item or FALSE if it could not be found.
     */
    public function getItem(string $scope = AccessPolicyInterface::SCOPE_DRUPAL, string|int $identifier = AccessPolicyInterface::SCOPE_DRUPAL) : CalculatedPermissionsItemInterface|false;
    
    /**
     * Retrieves all of the calculated permission items, regardless of scope.
     *
     * @return \Drupal\Core\Session\CalculatedPermissionsItemInterface[]
     *   A list of calculated permission items.
     */
    public function getItems() : array;
    
    /**
     * Retrieves all of the scopes that have items for them.
     *
     * @return string[]
     *   The scope names that are in use.
     */
    public function getScopes() : array;
    
    /**
     * Retrieves all of the calculated permission items for the given scope.
     *
     * @param string $scope
     *   (optional) The scope name to get the item for, defaults to 'drupal'.
     *
     * @return \Drupal\Core\Session\CalculatedPermissionsItemInterface[]
     *   A list of calculated permission items for the given scope.
     */
    public function getItemsByScope(string $scope = AccessPolicyInterface::SCOPE_DRUPAL) : array;

}