@java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (!assetContentData_.isEmpty()) {
        size += com.google.protobuf.CodedOutputStream.computeBytesSize(1, assetContentData_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }
<code>bytes asset_content_data = 1;</code>

@return The assetContentData.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/AssetSource.java