@java.lang.Override
          public com.google.cloud.websecurityscanner.v1.ScanConfig.Authentication.IapCredential
                  .IapTestServiceAccountInfo
              build() {
            com.google.cloud.websecurityscanner.v1.ScanConfig.Authentication.IapCredential
                    .IapTestServiceAccountInfo
                result = buildPartial();
            if (!result.isInitialized()) {
              throw newUninitializedMessageException(result);
            }
            return result;
          }
<pre>
Describes authentication configuration when Web-Security-Scanner
service account is added in Identity-Aware-Proxy (IAP) access policies.
</pre>

Protobuf type {@code
google.cloud.websecurityscanner.v1.ScanConfig.Authentication.IapCredential.IapTestServiceAccountInfo}
java-websecurityscanner/proto-google-cloud-websecurityscanner-v1/src/main/java/com/google/cloud/websecurityscanner/v1/ScanConfig.java