|string> */ public function rules(): array { return [ 'branch_name' =>'required|string|exists:branches,name', 'room_name' => 'required|string', 'command' => 'required|in:active,closed,fire,maintain,error', 'started_at' => 'nullable|date_format:Y-m-d H:i:s', 'ended_at' => 'nullable|date_format:Y-m-d H:i:s', ]; } }