code: public static void main(String[] args) throws IOException {
          if (args.length < 2) {
              System.err.println("Usage:\n"
                              + "mvn exec:java -Dexec.mainClass=\"org.nd4j.tensorflow.conversion.ProtoBufToFlatBufConversion\" -Dexec.args=\"<input_file.pb> <output_file.fb>\"\n");
          } else {
              convert(args[0], args[1]);
          }
      }
docs: Main function.
  The conversion tool can be called from the command line with the floowing syntax:
  mvn exec:java -Dexec.mainClass="org.nd4j.tensorflow.conversion.ProtoBufToFlatBufConversion" -Dexec.args="<input_file.pb> <output_file.fb>"
  
  @param args the first argument is the input filename (protocol buffer format),
  the second one is the output filename (flat buffer format)
  @throws IOException