Requests that the currently used token becomes invalid. Call this should a user logout.

def revoke_access(self):
        """  Requests that the currently used token becomes invalid. Call this should a user logout. """
        if self.token is None:
            return True
        #Don't try to revoke if token is invalid anyway, will cause an error response anyway.
        if self.validate():
            data = {}
            data['token'] = self.token['access_token']
            self.request().post(self.revoke_url, data=data, json=None,verify=self.verifySSL)
        return True