/**
 * Calls Lodash’s mergeWith function
 * but with a comparator function provided to merge any string leaves if they are truthy.
 *
 * @param object The base object to merge.
 * @param otherArgs A list of objects to merge.
 * @returns The resulting merged object.
 */
export declare function mergeMessages(object: any, ...otherArgs: any[]): any;