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# acl

A union containing a settable access control list structure.

```
var acl: es_event_setacl_t.__Unnamed_union_acl
```

## Discussion

The `acl` union is valid only when the [`set_or_clear`](/documentation/EndpointSecurity/es_event_setacl_t/set_or_clear) value is [`ES_SET`](/documentation/EndpointSecurity/ES_SET). In this case, the union contains an `acl_t` called `set` containing the access control list values.

---

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