pi.MetricDescriptor.ValueType</a></ol><hr></div></nav><p>The <code>stackdriver</code> adapter enables Istio to deliver log, metric and traces to the
<a href=https://cloud.google.com/stackdriver/>Stackdriver</a> backend.</p><p>This adapter supports the <a href=/v1.9/zh/docs/reference/config/policy-and-telemetry/templates/metric/>metric template</a>,
the <a href=/v1.9/zh/docs/reference/config/policy-and-telemetry/templates/logentry/>logentry template</a>,
and the <a href=/v1.9/zh/docs/reference/config/policy-