anchor.diff:  The extension of the model to save can be `slx` or `mdl`.
   (The default by MATLAB is `slx`).
   Please note, that the save path and save name is already set in the EMF representation,
  -so it can be obtained by the `loadedModel.getSimulinkRef().getFQN()` call.+so it can be obtained by the `loadedModel.getSimulinkRef().getFQN()` call.
  +
  +== Caveats
  +
  +If a model is already loaded by Simulink, you can't re-import or re-export them.
  +Use "bdclose('all')" simulink command to close all opened systems.
  +
  +It can be run via Massif programmatically:
  +[source, java]
  +----
  +ICommandEvaluator commandEvaluator = ... // The commandEvaluator of your choice
  +MatlabCommandFactory commandFactory = new MatlabCommandFactory(commandEvaluator);
  +MatlabCommand closeAllCommand = commandFactory.customCommand("bdclose", 0);
  +closeAllCommand.addParam("all");
  +closeAllCommand.execute();
  +----
  
positive.code: To wrap low level Matlab commands a command factory is provided,
  which can be used to create objects that represent common commands in Matlab,
  and have methods like parameter addition, execution initiation.
  The factory is to be instantiated in the following way using the previously provided command evaluator: 
  [source, java]
  ----
  MatlabCommandFactory factory = new MatlabCommandFactory(commandEvaluator);
  
negative.code: 
  == Prerequisites
  
  === Headless usage (Massif in non-eclipse environment)
  If you wish to use massif in non-eclipse environment, you have to run the following
  setup found in 'hu.bme.mit.massif.simulink.cli' package:
  [source, java]
  ----
  "CLIInitializationUtil.setupEnvironment()"
  ----
  
  Also, the default VIATRA backends must be provided:
  [source, java]
  ----
  import org.eclipse.viatra.query.runtime.api.ViatraQueryEngineOptions;
  import org.eclipse.viatra.query.runtime.localsearch.matcher.integration.LocalSearchEMFBackendFactory;
  import org.eclipse.viatra.query.runtime.rete.matcher.ReteBackendFactory;
  ----
  
  [source, java]
  ----
  ViatraQueryEngineOptions.setSystemDefaultBackends(ReteBackendFactory.INSTANCE, ReteBackendFactory.INSTANCE, LocalSearchEMFBackendFactory.INSTANCE);
  ----
  
  
  === General prerequisites
  In order to successfully use the Importer (`ImporterExample` class) or the Exporter (`ExporterExample` class),
  some other components has to be created first in both classes, namely:
  
  