import type { ValidationOptions } from 'class-validator';
export declare function IsBigInt(validationOptions?: ValidationOptions): (object: object, propertyName: string) => void;
export declare function IsPositiveBigInt(validationOptions?: ValidationOptions): (object: object, propertyName: string) => void;
export declare function IsEnumByValue(enumType: object, validationOptions?: ValidationOptions): PropertyDecorator;
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