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title: danog\MadelineProto\Shutdown: Class that controls script shutdown.
description: 

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# `danog\MadelineProto\Shutdown`
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> Author: Daniil Gentili <daniil@daniil.it>  
  

Class that controls script shutdown.  




## Method list:
* `shutdown(): void`
* `addCallback(callable $callback, null|string $id): int|\string The callback ID`
* `removeCallback(null|string|int $id): \bool true if the callback was removed correctly, false otherwise`

## Methods:
### `shutdown(): void`

Function to be called on shutdown.


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### `addCallback(callable $callback, null|string $id): int|\string The callback ID`

Add a callback for script shutdown.


Parameters:
* `$callback`: `callable` The callback to set  
* `$id`: `null|string` The optional callback ID  


Return value: The callback ID

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### `removeCallback(null|string|int $id): \bool true if the callback was removed correctly, false otherwise`

Remove a callback from the script shutdown callable list.


Parameters:
* `$id`: `null|string|int` The optional callback ID  


Return value: true if the callback was removed correctly, false otherwise

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