text: import Node from './Node.js';
  export default class TreeStore {
    constructor(options) {
      for (let option in options) {
        if (options.hasOwnProperty(option)) {
          this[option] = options[option];
        }
      }
      this.nodesMap = {};
      this.nodeList = [];
      this.selectedIds = [];
      this.maxLevel = 0;
      this.root = new Node({
        data: this.data,
        store: this
      });
    }
  }
  