public com.google.cloud.visionai.v1.AssetSourceOrBuilder getAssetSourceOrBuilder() {
      if (assetSourceBuilder_ != null) {
        return assetSourceBuilder_.getMessageOrBuilder();
      } else {
        return assetSource_ == null
            ? com.google.cloud.visionai.v1.AssetSource.getDefaultInstance()
            : assetSource_;
      }
    }
<pre>
The source of the asset.
</pre>

<code>.google.cloud.visionai.v1.AssetSource asset_source = 2;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/UploadAssetRequest.java