/**
 *
 * @function merge
 * @memberof tools
 * @param baseObject {Object}
 * @param _obj2 {Object}
 * @param _obj3 {Object}
 * @param _obj4 {Object}
 * @returns {Object}
 */
tools.merge = function (baseObject, _obj2, _obj3, _obj4) {

};