Event Handlers 12 Update Handler Feb 12, 2024 Shutdown Handler Feb 12, 2024 Shipping Query Handler Feb 12, 2024 Pre Checkout Query Handler Feb 12, 2024 Message Handler Feb 12, 2024 Initialize Handler Feb 12, 2024 Event Handler Feb 12, 2024 Error Handler Feb 12, 2024 Disconnect Handler Feb 12, 2024 Connect Handler Feb 12, 2024 Command Handler Feb 12, 2024 Callback Query Handler Feb 12, 2024