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<?php
namespace LeanCloud\Storage;
/**
* Storage Interface
*
* Simple key-value storage interface for persisting session related
* data. At SDK level, it is attached to Client, and used for
* storing session token of a logged-in User.
*
*/
interface IStorage {
/**
* Set value by key
*
* @param string $key
* @param mixed $val
* @return $this
*/
public function set($key, $val);
/**
* Get value by key
*
* @param string $key
* @return mixed
*/
public function get($key);
/**
* Remove key from storage
*
* @param string $key
* @return $this
*/
public function remove($key);
/**
* Clear all data in storage
*
* @return $this
*/
public function clear();
}