public function roleAddSubject(Role $role, SubjectInterface $subject)
    {
        if ($this->roleAddSubjectId($role, $subject->id())) {
            $users_role_set = $subject->getRoleSet();
            $users_role_set->addRole($role);
            $subject->loadRoleSet($users_role_set);
            return true;
        } else {
            return false;
        }
    }