/**
 * Upgrade CSL item from 1.0.1 to 1.0.2
 *
 * @method upgradeCsl
 * @memberof module:@citation-js/core.util
 *
 * @param {Object} item - Input object
 *
 * @return {Object} upgraded item
 */
export function upgradeCsl(item: any): any;
/**
 * Downgrade CSL item from 1.0.2 to 1.0.1
 *
 * @method downgradeCsl
 * @memberof module:@citation-js/core.util
 *
 * @param {Object} item - Input object
 *
 * @return {Object} downgraded item
 */
export function downgradeCsl(item: any): any;
