Function setChatUsername

setChatUsername(
    client: ITelegramClient,
    chatId: InputPeerLike,
    username: string | null,
): Promise<void>
Change supergroup/channel username

You must be an administrator and have the appropriate permissions.
Parameters
- client: ITelegramClient
- chatId: InputPeerLike
  Chat ID or current username
- username: string | null
  New username, or null to remove
Returns Promise<void>
- Defined in packages/core/src/highlevel/methods/chats/set-chat-username.ts:14