/**
 * Prepares a content object to be sent via a query in a scenaro where each of
 * the keys will be converted to a string, such as being sent using an
 * esri request. Objects are stringified to ensure they are preserved and not
 * converted to "[object Object]" via poor use of .toString().
 *
 * @param query The object to be sent using an esri.request.
 */
export declare function jsonToQueryObject(contentObject: {}): {};
