怎样给html节点添加magnet属性？

[happy-little-one]

   attrs: {
      body: {
        magnet: true,
      },
  }

[NewByVector]

attrs: {
  fo: { magnet: true }
}

[happy-little-one]

html 接点没有markup 和attrs,直接返回一段html 啊

Graph.registerNode('node', {
    inherit: 'html',
    html(node) {
      const div = document.createElement('div')
      const cpt = new Entity({ target: div })
      return div
    },
  })