/**
 * 'convertJsonSchema3to4' function
 *
 * Converts JSON Schema version 3 to JSON Schema version 4
 *
 * Based on geraintluff's JSON Schema compatibility function
 * https://github.com/geraintluff/json-schema-compatibility
 *
 * @param {object} originalSchema - JSON schema (version 3 or 4)
 * @return {object} - JSON schema (version 4)
 */
export declare function convertJsonSchema3to4(schema: any): any;
