1: <?php
 2: 
 3: namespace ProgrammingAreHard\Arbiter\Model;
 4: 
 5: interface PermissionsInterface extends \IteratorAggregate, \Countable
 6: {
 7:     /**
 8:      * Does the permissions have the permission?
 9:      *
10:      * @param string $permission
11:      * @return bool
12:      */
13:     public function contains($permission);
14: 
15:     /**
16:      * Add the permission.
17:      *
18:      * @param string $permission
19:      * @return $this
20:      */
21:     public function add($permission);
22: 
23:     /**
24:      * Remove the permission.
25:      *
26:      * @param string $permission
27:      * @return $this
28:      */
29:     public function remove($permission);
30: 
31:     /**
32:      * Convert to array.
33:      *
34:      * @return string[]
35:      */
36:     public function toArray();
37: }