wepy 编译不了 官方组件 keyboard-accessory？

连接：https://developers.weixin.qq.com/miniprogram/dev/component/keyboard-accessory.html

<textarea hold-keyboard="{{true}}">
  <keyboard-accessory class="container" style="height: 50px;">
    <cover-view bindtap="tap" style="flex: 1; background: green;">1</cover-view>
    <cover-view bindtap="tap" style="flex: 1; background: red;">2</cover-view>
  </keyboard-accessory>
</textarea>

编译成了

<textarea hold-keyboard="{{true}}" />