code: def logout_service_description(self):
          
          label = 'Logout from ' + self.name
          if (self.auth_type):
              label = label + ' (' + self.auth_type + ')'
          return({"@id": self.logout_uri,
                  "profile": self.profile_base + 'logout',
                  "label": label})
docs: Logout service description.