def METHOD_NAME(self, request, username_or_email):
    """
    * Example Request:
        - GET /support/onboarding_status/<username_or_email>
    * Example Response:
        {
            "verified_in": {
                "onboarding_status": "verified",
                "onboarding_link": "/courses/<course_id>/jump_to/<block_id>",
                "expiration_date": null,
                "onboarding_past_due": false,
                "onboarding_release_date": "2016-01-01T00:00:00+00:00",
                "review_requirements_url": "",
                "course_id": "<course_id>",
                "enrollment_date": "2021-12-29T14:30:18.895435Z",
                "instructor_dashboard_link": "/courses/<course_id>/instructor#view-special_exams"
            },
            "current_status": {
                "onboarding_status": "other_course_approved",
                "onboarding_link": "/courses/<course_id>/jump_to/<block_id>",
                "expiration_date": "2023-12-29T15:52:28.245Z",
                "onboarding_past_due": false,
                "onboarding_release_date": "2020-01-01T00:00:00+00:00",
                "review_requirements_url": "",
                "course_id": "<course_id>",
                "enrollment_date": "2021-12-29T15:58:29.489916Z",
                "instructor_dashboard_link": "/courses/<course_id>/instructor#view-special_exams"
            }
        }
    """
    # return dict
    onboarding_status = {
        'verified_in': None,
        'current_status': None
    }
    # make object mutable
    request.GET = request.GET.copy()
    try:
        user = User.objects.METHOD_NAME(Q(username=username_or_email) | Q(email=username_or_email))
    except User.DoesNotExist:
        return JsonResponse(onboarding_status, status=404)
    request.GET['username'] = user.username
    enrollments = get_enrollments(user.username)
    enrollments = sorted(enrollments, key=lambda enrollment: enrollment['created'], reverse=True)
    enrollments = filter(
        lambda enrollment: enrollment['mode'] in [CourseMode.VERIFIED, CourseMode.PROFESSIONAL],
        enrollments
    )
    for enrollment in enrollments:
        request.GET['course_id'] = enrollment['course_details']['course_id']
        status = StudentOnboardingStatusView().METHOD_NAME(request).data
        if 'onboarding_status' in status:
            status['course_id'] = enrollment['course_details']['course_id']
            status['enrollment_date'] = enrollment['created']
            status['instructor_dashboard_link'] = \
                '/courses/{}/instructor#view-special_exams'.format(status['course_id'])
            # set most recent status only at first iteration
            if onboarding_status['current_status'] is None:
                onboarding_status['current_status'] = status
            # stay in loop to find original verified enrollment. Expensive!
            if status['onboarding_status'] == ProctoredExamStudentAttemptStatus.verified:
                onboarding_status['verified_in'] = status
                break
    return JsonResponse(onboarding_status)