{
    "cli": "lms.cli.courses.groups.memberships.list",
    "arguments": [
        "--course", "Extra Course",
        "--groupset", "Group Set 1",
        "--group", "Group 1-1",
    ],
}
---
groupset: Group Set 1 (131010100)
group: Group 1-1 (131010101)
user: extra-course-student-1@test.edulinq.org (100060000)

groupset: Group Set 1 (131010100)
group: Group 1-1 (131010101)
user: extra-course-student-2@test.edulinq.org (100070000)
