|string> */ public function rules(): array { return [ 'nama' => 'required|string|max:255', 'nip' => 'required|string|unique:gurus,nip,' . $this->route('guru')->id, 'alamat' => 'nullable|string', 'tanggal_lahir' => 'nullable|date', 'jenis_kelamin' => 'required|in:L,P', 'user_id' => 'nullable|integer|exists:users,id', ]; } }