import * as Yup from 'yup'; export declare const equipmentValidationSchema: Yup.ObjectSchema; maintenanceStartsAt: Yup.DateSchema; maintenanceEndsAt: Yup.DateSchema; }>, import("yup/lib/object").AnyObject, import("yup/lib/object").TypeOfShape; maintenanceStartsAt: Yup.DateSchema; maintenanceEndsAt: Yup.DateSchema; }>>, import("yup/lib/object").AssertsShape; maintenanceStartsAt: Yup.DateSchema; maintenanceEndsAt: Yup.DateSchema; }>>>;