Function setMyUsername

setMyUsername(client, username): Promise<User>
Change username of the current user.

Note that bots usernames must be changed through bot support or re-created from scratch.
Parameters
- client: ITelegramClient
- username: null | string
  New username (5-32 chars, allowed chars: a-zA-Z0-9_), or null to remove
Returns Promise<User>
- Defined in packages/core/src/highlevel/methods/users/set-my-username.ts:12