|string> */ public function rules(): array { return [ 'jenis_proyek' => 'required|string', 'nib' => 'string', 'business_name' => 'required|string', 'status_penanaman_modal' => 'string', 'business_form' => 'string', 'uraian_resiko_proyek' => 'string', 'project_name' => 'required|string', 'project_id' => 'required|string', 'business_address' => 'required|string', 'district_name' => 'required|string', 'village_name' => 'required|string', 'land_area' => 'required|string', 'investment_amount' => 'required|string', 'number_of_employee' => 'required|string', 'business_type_id' => 'required|string', 'terbit_oss' => 'required|date', 'business_scale_id' => 'required', ]; } }