import * as Yup from 'yup'; export declare const intervalQuestionValidationSchema: (field: any, NumberValueConstraint: any) => Yup.ObjectSchema; max: Yup.NumberSchema; unit: import("yup/lib/object").OptionalObjectSchema | null>; }>, import("yup/lib/object").AnyObject, import("yup/lib/object").TypeOfShape; max: Yup.NumberSchema; unit: import("yup/lib/object").OptionalObjectSchema | null>; }>>, import("yup/lib/object").AssertsShape; max: Yup.NumberSchema; unit: import("yup/lib/object").OptionalObjectSchema | null>; }>>>;