user()->is($user); } public function create(User $user): bool { return false; } public function update(User $user, Chat $chat): bool { return $chat->user()->is($user); } public function delete(User $user, Chat $chat): bool { return false; } public function restore(User $user, Chat $chat): bool { return false; } public function forceDelete(User $user, Chat $chat): bool { return false; } }