# ICallBack

## Content

# Interface: ICallBack<T\>

## Type parameters

| Name | Type |
| :------ | :------ |
| `T` | `unknown` |

## Callable

### ICallBack

▸ **ICallBack**(`err?`, `data?`): `void`

#### Parameters

| Name | Type |
| :------ | :------ |
| `err?` | ``null`` \| `Error` |
| `data?` | `T` |

#### Returns

`void`