importosimportreimporttimeimportnumpyasnpfromflaskimportBlueprint,request,jsonifyfromPILimportImage# from app.utils.im_utils import pil2npsanitize_re=re.compile('[\W]+')valid_exts=['.gif','.jpg','.jpeg','.png']LIMIT=9api=Blueprint('api',__name__)@api.route('/')defindex():"""List the datasets and their fields"""returnjsonify({'status':'ok'})