Please tell me how to get the URL of the file in the event using graph api.
It is the following file.

The file was shared via chat during a video conference.

When I executed the API referring to the link below, the file could not be obtained.
https://docs.microsoft.com/ja-jp/graph/api/event-list-attachments?view=graph-rest-1.0&tabs=http
GET /me/events/AAMkADA1ZjgxYzIzLTQyNWUtNDI3Mi04YjJhLWJiMjliZDI4ZDlhZABGAAAAAADqjBSo05aEQa0pg3g68HfIBwCG7IUHTsMnQqpuCmPLOpmMAAAAAAENAACG7IUHTsMnQqpuCmPLOpmMAAA7Kcf_AAA=
