You can ask a question and provide a few options for the user to choose from. The user can select only one option or multiple options, depending on the poll configuration.
queued_request_uuid that you can use to check the actual message status.queued_request_link or the Get Queued Request endpoint to check the actual message response once it’s processed.
More details on queued requests can be found in the Queued Requests Documentation.

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
"{{ instance_id }}"