private void buildPartial0(
              com.google.cloud.websecurityscanner.v1.ScanConfig.Authentication.IapCredential
                      .IapTestServiceAccountInfo
                  result) {
            int from_bitField0_ = bitField0_;
            if (((from_bitField0_ & 0x00000001) != 0)) {
              result.targetAudienceClientId_ = targetAudienceClientId_;
            }
          }
<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