import { FieldDescriptor, FieldsDescriptors } from "./forminator";
export declare class ValidationError {
    message?: string;
    errors?: ValidationError[];
    constructor(message?: string, errors?: ValidationError[]);
}
export declare type Validator<K, T extends object = {}> = (field: FieldDescriptor<K, T>, fields: FieldsDescriptors<T>) => void;
export declare type FormValidator<T extends object = {}> = (fields: FieldsDescriptors<T>) => void;
export declare const minLength: (message: string, length: number) => Validator<string>;
export declare const maxLength: (message: string, length: number) => Validator<string>;
export declare const required: (message: string) => Validator<any>;
export declare const same: <T extends object = {}>(message: string, comparisonField: keyof T) => Validator<any, T>;
export declare const email: (message: string) => Validator<string>;
export declare const notEmpty: (message: string) => Validator<any[]>;