type ValidatorOption = {
    type: 'empty';
} | {
    type: 'email';
} | {
    type: 'numberInRange';
    options?: {
        min?: number;
        max?: number;
    };
} | {
    type: 'naturalNumber';
} | {
    type: 'decimalDigits';
    options?: {
        digits: number;
    };
} | {
    type: 'date';
} | {
    type: 'json';
} | {
    type: 'equal';
    options: {
        ref: React.RefObject<HTMLInputElement | null>;
    };
} | {
    type: 'existsInOptions';
    options: {
        options: {
            value: string;
            label: string;
        }[];
        matchBy?: 'value' | 'label';
    };
};
export type ValidatorOptions = ValidatorOption[];
export declare const validator: (value: string, validatorOptions: ValidatorOptions) => string[];
export {};