|string> */ public function rules(): array { return [ 'nama' => 'required|string|max:255', 'username' => 'required|string|max:255|unique:users,username', 'password' => 'required|string|min:8|confirmed', 'nip' => 'required|string|unique:gurus,nip', 'alamat' => 'nullable|string', 'tanggal_lahir' => 'nullable|date', 'jenis_kelamin' => 'required|in:L,P', ]; } }