/**
 * Get the intersection of two arrays
 *
 * @param {Array} a
 * @param {Array} b
 *
 * @private
 * @returns {Array} intersection between a and b
 */
export function intersect(a: any[], b: any[]): any[];
/**
 * Given an object of form {"1": {...}, "2": {...}, ...} get the maximum ID used
 * in this object
 * If the object has no keys, return 0
 *
 * @param {Object} o an object for which the keys are an ID
 *
 * @returns {number}
 */
export function getMaxObjectId(o: Object): number;
/** converts and orderBy Object to a string equivalent that can be processed by orm.call */
export function orderByToString(orderBy: any): any;
/**
 * Convert a spreadsheet date representation to an odoo
 * server formatted date
 *
 * @param {Date} value
 * @returns {string}
 */
export function toServerDateString(value: Date): string;
/**
 * @param {number[]} array
 * @returns {number}
 */
export function sum(array: number[]): number;
/**
 * Recursively convert camel case object keys to snake case keys
 * @param {object} obj
 * @returns {object}
 */
export function camelToSnakeObject(obj: object): object;
/**
 * Check if the argument is falsy or is an empty object/array
 *
 * TODO : remove this and replace it by the one in o_spreadsheet xlsx import when its merged
 */
export function isEmpty(item: any): boolean;
/**
 * Load external libraries required for o-spreadsheet
 * @returns {Promise<void>}
 */
export function loadSpreadsheetDependencies(): Promise<void>;