Microsoft Teams Graph Explorer:如何在 "send channel message" API 中提及频道成员?

Microsoft Teams Graph Explorer: how to mention channel members in "send channel message" API?

图表浏览器:https://developer.microsoft.com/en-us/graph/graph-explorer

API 发送频道消息: https://graph.microsoft.com/v1.0/teams/{team-id}/channels/{channel-id}/messages

以下代码无效:

{
    "body": {
        "content": "Hello @John @Alan"
    }
}

请通过@在频道消息中提及用户 请求在频道消息中提及频道成员。