open closed open open open   [object ShadowRoot]
0
null
0
[object ShadowRoot]
1
null
0
[object ShadowRoot]
0



<template shadowrootmode="open">open</template>


<template shadowrootmode="open" shadowrootserializable="">open</template>





<template shadowrootmode="open" shadowrootserializable="">open</template>