is
This method lets you know the status of your users' consent.
It lets you know exactly whether your users have disallowed everything, and only that. The negation of this method does not mean that your users have allowed everything.
By clicking on the refuse all button, for example, or by deselecting all the information in your notice, such as stacks, purposes, features, etc. and vendors
Return
true if all consent items, stacks and vendors are disallowed. false if at least one of them is not disallowed null, if no data is present yet