File Operations/Lib/UndoableOperation.php

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 1: <?php
 2: 
 3: interface UndoableOperation {
 4: 
 5:     /**
 6:      * @return boolean
 7:      */
 8:     public function run();
 9: 
10:     /**
11:      * @return void
12:      */
13:     public function undo();
14: 
15:     public function __toString();
16: }
17: