import type { ObjectSchema, ValidateOptions } from 'yup';
import type { Obj, ValidationFunction, Extender } from '@felte/common';
export type ValidatorConfig = {
    schema: ObjectSchema<any>;
    level?: 'error' | 'warning';
    castValues?: boolean;
};
export declare function validateSchema<Data extends Obj>(schema: ObjectSchema<any>, options?: ValidateOptions): ValidationFunction<Data>;
export declare function validator<Data extends Obj = Obj>({ schema, level, castValues, }: ValidatorConfig): Extender<Data>;
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