function wrapRefs(props, arrowProps) {
  var ref = props.ref;
  var aRef = arrowProps.ref;

  props.ref = ref.__wrapped || (ref.__wrapped = function (r) {
    return ref(Object(external_root_ReactDOM_commonjs2_react_dom_commonjs_react_dom_amd_react_dom_["findDOMNode"])(r));
  });

  arrowProps.ref = aRef.__wrapped || (aRef.__wrapped = function (r) {
    return aRef(Object(external_root_ReactDOM_commonjs2_react_dom_commonjs_react_dom_amd_react_dom_["findDOMNode"])(r));
  });
}
The placement of the OVerlay in relation to it's `target`.