Are your users using Classroom with Google Meet? Check out the Apps Script quickstart covering how to check student attendence in Google Meet courses.

IndividualStudentsOptions

Assignee details about a coursework/announcement. This field is set if and only if assigneeMode is INDIVIDUAL_STUDENTS.

JSON representation
{
  "studentIds": [
    string
  ]
}
Fields
studentIds[]

string

Identifiers for the students that have access to the coursework/announcement.