declare function setProp(optionalTarget: any, ...hierarchies: any[]): any;
declare function assignProp(target: any, ...hierarchies: any[]): any;
declare function putProp(target: any, ...hierarchies: any[]): any;
declare function setPropIfUndef(optionalTarget: any, ...hierarchies: any[]): any;
declare function assignPropIfUndef(target: any, ...hierarchies: any[]): any;
declare function putPropIfUndef(target: any, ...hierarchies: any[]): any;
export { setProp, assignProp, putProp, setPropIfUndef, assignPropIfUndef, putPropIfUndef };