Function markIsRecording

markIsRecording(chatId: string | Wid, duration?: number): Promise<void>
Mark a chat to recording state and keep sending "is recording"
Parameters
- chatId: string | Wid
- Optionalduration: number
Returns Promise<void>
Example
```
// Mark is recording
WPP.chat.markIsRecording('[number]@c.us');

// Mark is recording for 5 seconds
WPP.chat.markIsRecording('[number]@c.us', 5000);
```
- Defined in src/chat/functions/markIsRecording.ts:35