A promise that resolves to 0 if the previous menu should be closed, 1 if the previous menu should be reopened, or 2 if the menu before the previous menu should be reopened.
Throws
If sourceEntity is not an instance of the Player class or an instance of the executeCommandPlayerW class with a Player linked to it.
Shows a UI for unbanning a player.
This menu prompts players to confirm the unbanning of the specified player, and unbans they player if they confirm.