import { NumberService } from '@tc-libs/helper';
import { ValidationOptions, ValidatorConstraintInterface } from 'class-validator';
export declare class IsOnlyDigitsConstraint implements ValidatorConstraintInterface {
    private readonly _number;
    constructor(_number: NumberService);
    validate(value: string): boolean;
}
export declare function IsOnlyDigits(validationOptions?: ValidationOptions): (object: Record<string, any>, propertyName: string) => void;