/**
 * 'convertSchemaToDraft6' function
 *
 * Converts a JSON Schema from draft 1 through 4 format to draft 6 format
 *
 * Inspired by on geraintluff's JSON Schema 3 to 4 compatibility function:
 *   https://github.com/geraintluff/json-schema-compatibility
 * Also uses suggestions from AJV's JSON Schema 4 to 6 migration guide:
 *   https://github.com/epoberezkin/ajv/releases/tag/5.0.0
 * And additional details from the official JSON Schema documentation:
 *   http://json-schema.org
 *
 * //  { object } originalSchema - JSON schema (draft 1, 2, 3, 4, or 6)
 * //  { OptionObject = {} } options - options: parent schema changed?, schema draft number?
 * // { object } - JSON schema (draft 6)
 */
export interface OptionObject {
    changed?: boolean;
    draft?: number;
}
export declare function convertSchemaToDraft6(schema: any, options?: OptionObject): any;