@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    for (int i = 0; i < metadataFields_.size(); i++) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, metadataFields_.getRaw(i));
    }
    if (filterCase_ == 2) {
      output.writeMessage(2, (com.google.cloud.storageinsights.v1.CloudStorageFilters) filter_);
    }
    if (destinationOptionsCase_ == 3) {
      output.writeMessage(
          3,
          (com.google.cloud.storageinsights.v1.CloudStorageDestinationOptions) destinationOptions_);
    }
    getUnknownFields().writeTo(output);
  }
<pre>
Cloud Storage as the storage system.
</pre>

<code>
.google.cloud.storageinsights.v1.CloudStorageDestinationOptions storage_destination_options = 3;
</code>
java-storageinsights/proto-google-cloud-storageinsights-v1/src/main/java/com/google/cloud/storageinsights/v1/ObjectMetadataReportOptions.java