import { type ErrorFunctionParameter } from '@sinclair/typebox/errors';
/**
 * Customer error message callback type.
 *
 * @category Internal
 */
export type ErrorMessageCallback = (this: void, error: Readonly<ErrorFunctionParameter>) => string;
/**
 * Register a custom error message for the given schema kind.
 *
 * @category Internal
 */
export declare function registerErrorMessage(kind: string, callback: ErrorMessageCallback): void;
/**
 * Sets the custom error messages.
 *
 * @category Internal
 */
export declare function setShapeDefinitionErrorMessage(): void;