Iterable<AclBinding> acls(AclBindingFilter filter) {
        return aclCache.acls(filter);
    }
Creates a consistent Iterable on read-only copy of AclBindings data for the given filter.

@param filter The filter constraining the AclBindings to be present in the Iterable.
@return Iterable over AclBindings matching the filter.
metadata/src/main/java/org/apache/kafka/metadata/authorizer/StandardAuthorizerData.java