import { Options } from '../../../core';
/**
 * Searches an array for an occurrence of a specified value and returns the array index of the first occurrence.
 * If the substring is not found, returns -1.
 *
 * @param  {Object} obj
 * @param  {*} expr
 * @return {*}
 */
export declare function $indexOfArray(obj: object, expr: any, options: Options): any;