freeipa/install/ui/test/data/rolegroup_add_member.json

{
    "error": null,
    "id": 0,
    "result": {
        "completed": 1,
        "failed": {
            "member": {
                "group": [],
                "host": [],
                "hostgroup": [],
                "user": []
            }
        },
        "result": {
            "cn": [
                "test"
            ],
            "description": [
                "Test role"
            ],
            "dn": "cn=test,cn=rolegroups,cn=accounts,dc=dev,dc=example,dc=com",
            "member_user": [
                "admin"
            ]
        }
    }
}