Is there a way to check if Turnstile checkbox is unchecked?

Hi,

Is there a way to check if a Turnstile widget that is displaying a ‘Verifiy you are a human’ checkbox is left unchecked.
I would like to include it in validation to display a message to the user to tick the box.

Alternatively is there a way to check if the checkbox field is loaded so I can decipher if a checkbox has being left unchecked or the turnstile token is missing for some other reason on the backend.
As far as I can tell a token is missing when the checkbox is unchecked and turnstile is not loaded, is there something I am missing?

Kind regards,
Peter