docs: public static void main(String[] args) {
          //Adding custom equivalence class generation transformer - NOTE this will get applied during graph traversal-->
          //MODEL USAGE EXAMPLE: <assign name="var_out_V1_2" expr="%ssn"/> <dg:transform name="EQ"/>
          Map<String, DataTransformer> transformers = new HashMap<String, DataTransformer>();
          transformers.put("EQ", new EquivalenceClassTransformer());
          Vector<CustomTagExtension> cte = new Vector<CustomTagExtension>();
          cte.add(new InLineTransformerExtension(transformers));
          Engine engine = new SCXMLEngine(cte);
  
          //will default to samplemachine, but you could specify a different file if you choose to
          InputStream is = CmdLine.class.getResourceAsStream("/" + (args.length == 0 ? "samplemachine" : args[0]) + ".xml");
  
          engine.setModelByInputFileStream(is);
  
          // Usually, this should be more than the number of threads you intend to run
          engine.setBootstrapMin(1);
  
          //Prepare the consumer with the proper writer and transformer
          DataConsumer consumer = new DataConsumer();
          consumer.addDataTransformer(new SampleMachineTransformer());
  
          //Adding custom equivalence class generation transformer - NOTE this will get applied post data generation.
          //MODEL USAGE EXAMPLE: <dg:assign name="var_out_V2" set="%regex([0-9]{3}[A-Z0-9]{5})"/>
          consumer.addDataTransformer(new EquivalenceClassTransformer());
  
          consumer.addDataWriter(new DefaultWriter(System.out,
                  new String[]{"var_1_1", "var_1_2", "var_1_3", "var_1_4", "var_1_5", "var_1_6", "var_1_7",
                               "var_2_1", "var_2_2", "var_2_3", "var_2_4", "var_2_5", "var_2_6", "var_2_7", "var_2_8"}));
  
          //Prepare the distributor
          DefaultDistributor defaultDistributor = new DefaultDistributor();
          defaultDistributor.setThreadCount(1);
          defaultDistributor.setDataConsumer(consumer);
          Logger.getLogger("org.apache").setLevel(Level.WARN);
  
          engine.process(defaultDistributor);
      }