import { HttpError } from './errors';
import { ResponseTuple } from '../types';
export interface ValidatorConfig<T> {
    value?: any;
    isValid?: (t: T) => boolean | Promise<boolean>;
    response?: ResponseTuple<any> | HttpError<any>;
}
export type Validation<T> = Record<string, ValidatorConfig<T>>;
export interface ValidationError extends HttpError {
    name: 'ValidationError';
}
export declare function isValidationError(error: unknown): error is ValidationError;
export declare class Validator<T> {
    private prefix;
    private _validators;
    constructor(prefix?: string);
    add(config: Validation<T>): void;
    verify(t: T): Promise<void>;
}