Module 27395

function(t,e,r){"use strict";var n=r(617179);t.exports=function(t,e){if(!(t instanceof n))return null;var r=t.getNextSiblingKey();if(r)return r;var i=t.getParentKey();if(!i)return null;for(var o=e.get(i);o&&!o.getNextSiblingKey();){var a=o.getParentKey();o=a?e.get(a):null}return o?o.getNextSiblingKey():null}}