```ts
function announce(
   message, 
   politeness, 
   timeout): void;
```

Announce a message to screen readers.
Announcer needs to be mounted in the application for this to work.

## Parameters

| Parameter | Type | Default value | Description |
| ------ | ------ | ------ | ------ |
| `message` | `ReactNode` | `undefined` | The message to announce. |
| `politeness` | `"assertive" \| "polite"` | `'polite'` | The politeness level of the announcement. |
| `timeout` | `number` | `5000` | The time in milliseconds util the message is removed from area-live region. |

## Returns

`void`