function e(e=[],t=[]){let n=e.length,r=t.length;if(Math.abs(n-r)!==1)return{add:!1,key:null};function i(e,t){let n=new Map;e.forEach(e=>{n.set(e,!0)});let r=t.filter(e=>!n.has(e));return r.length===1?r[0]:null}return n<r?{add:!0,key:i(e,t)}:{add:!1,key:i(t,e)}}function t(e,t,n){let r=e[e.findIndex(e=>e.key===n)+1],i=t.findIndex(e=>e.key===n);if(r){let e=t.findIndex(e=>e.key===r.key);return t.slice(i+1,e)}return t.slice(i+1)}exports.findExpandedKeys=e,exports.getExpandRange=t;