Method _update

packages/runtime-dom/src/apiCustomElement.ts:550–554

()

  }

  private _update() {
    const vnode = this._createVNode()
    if (this._app) vnode.appContext = this._app._context
    render(vnode, this._root)
  }

  private _createVNode(): VNode<any, any> {
    const baseProps: VNodeProps = {}