proxy.io/docs/envoy/latest/intro/arch_overview/security/rbac_filter#condition>builtin attributes</a>
as inputs and produces new attributes that can be used by downstream plugins.</p><p>The following is an example of a configuration that produces one attribute
named <code>istio_operationId</code> using <code>request.url_path</code> and <code>request.method</code>.</p><div id=tabset-docs-reference-config-proxy-extensions-attributegen-1 role=tablist class=tabset><div class=tab-strip data-category-name=example>