populated when creating an instance of
the template.</p></td><td>No</td></tr><tr id=Subject-properties><td><code>properties</code></td><td><code>map&lt;string,&nbsp;<a href=/v1.10/zh/docs/reference/config/policy-and-telemetry/istio.policy.v1beta1.html#Value>Value</a>></code></td><td><p>Additional attributes about the subject.</p></td><td>No</td></tr></tbody></table></section><h2 id=Template>Template</h2><section><p>The <code>authorization</code> template defines parameters for performing policy
enforcement 