| *iam_members* | Map of member lists used to set authoritative bindings, keyed by role. | <codetitle="map(list(string))">map(list(string))</code> | | <codetitle="">null</code> |
| *iam_roles* | List of roles used to set authoritative bindings. | <codetitle="list(string)">list(string)</code> | | <codetitle="">null</code> |