Get onlineMeeting meeting details through the graph api. attendees are always an empty array. How can you get the number of attendees after creating a meeting?

Question

Hello, I have a problem, using the graph api to get the details of onlineMeeting meeting, attendees have always been empty array, how can I get the number of participants after creating the meeting?

Or how can I obtain the number of participants as shown in the figure below when the meeting is in progress, thank you!