def METHOD_NAME(testapp):
    item = {
        # antibody_characterization reviewed_by has linkEnum
        'uuid': '4c23ec32-c7c8-4ac0-affb-04befcc881d4',
        'first_name': 'Wrangler',
        'last_name': 'Admin',
        'email': 'wrangler@example.org',
        'groups': ['admin'],
    }
    # User @@object view has keys omitted.
    res = testapp.post_json('/user', item)
    return testapp.get(res.location).json