private void buildPartialOneofs(
            com.google.cloud.websecurityscanner.v1.ScanConfig.Authentication.IapCredential result) {
          result.iapCredentialsCase_ = iapCredentialsCase_;
          result.iapCredentials_ = this.iapCredentials_;
          if (iapCredentialsCase_ == 1 && iapTestServiceAccountInfoBuilder_ != null) {
            result.iapCredentials_ = iapTestServiceAccountInfoBuilder_.build();
          }
        }
<pre>
Describes authentication configuration for Identity-Aware-Proxy (IAP).
</pre>

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