import type { Ajv, ValidateFunction } from 'ajv';
import type { FastifyError } from 'fastify';
export declare const kHttpErrorsEnhancedConfiguration: unique symbol;
export declare const kHttpErrorsEnhancedResponseValidations: unique symbol;
export interface Configuration {
    hideUnhandledErrors?: boolean;
    convertValidationErrors?: boolean;
    allowUndeclaredResponses?: boolean;
    use422ForValidationErrors?: boolean;
    responseValidatorCustomizer?: (ajv: Ajv) => void;
    preHandler?: (error: FastifyError | Error) => Error;
}
declare module 'fastify' {
    interface FastifyInstance {
        [kHttpErrorsEnhancedResponseValidations]: [FastifyInstance, ResponseSchemas, [string, object][]][];
    }
    interface FastifyRequest {
        [kHttpErrorsEnhancedConfiguration]?: Configuration;
    }
}
export type GenericObject = Record<string, any>;
export type NodeError = NodeJS.ErrnoException;
export type RequestSection = 'params' | 'query' | 'querystring' | 'headers' | 'body' | 'response';
export type ResponseSchemas = Record<string, ValidateFunction>;
export type Validations = Record<string, Record<string, string>>;
export type ValidationFormatter = (...args: any[]) => string;