 as the <code>istio_responseClass</code> attribute. For
example, all response codes in 200s are mapped to <code>2xx</code>.</p><div id=tabset-docs-reference-config-proxy-extensions-attributegen-2 role=tablist class=tabset><div class=tab-strip data-category-name=example><button aria-selected=true data-category-value=v1alpha3 aria-controls=tabset-docs-reference-config-proxy-extensions-attributegen-2-0-panel id=tabset-docs-reference-config-proxy-extensions-attributegen-2-0-tab role=tab><span>v1alpha3</span></b