|string> */ public function rules(): array { return [ 'PerusahaanId' => 'required|integer', 'RefHistoryKegiatanId' => 'required|integer', 'TanggalHistory' => 'required|date', 'NomorHistory' => 'nullable|string|max:100', 'KeteranganHistory' => 'nullable|string', 'DokumenHistory' => 'required|file|mimes:pdf', ]; } }