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