import Ajv from 'ajv';
export declare const _instanceWrapper: {
    instance: undefined | Ajv;
};
/**
 * Return the Ajv instance used internally by FoalTS validation hooks.
 *
 * It has this default configuration:
 *  - coerceTypes: true (Change data type of data to match `type` keyword.)
 *  - removeAdditional: true (Remove additional properties when `additionalProperties` keyword is false.)
 *  - useDefaults: true (Replace missing properties and items with the values from corresponding `default` keyword)
 *
 *
 * @export
 * @returns {Ajv} The AJV instance
 */
export declare function getAjvInstance(): Ajv;