{
    "cli": "lms.cli.courses.groupsets.memberships.list",
    "arguments": [
        '--course', 'Extra Course',
        '--groupset', 'Group Set 1',
    ],
}
---
groupset: Group Set 1 (100)
group: Group 1-1 (101)
user: extra-course-student-1@test.edulinq.org (7)

groupset: Group Set 1 (100)
group: Group 1-1 (101)
user: extra-course-student-2@test.edulinq.org (8)

groupset: Group Set 1 (100)
group: Group 1-2 (102)
user: extra-course-student-3@test.edulinq.org (9)

groupset: Group Set 1 (100)
group: Group 1-2 (102)
user: extra-course-student-4@test.edulinq.org (10)
