code: package epmc.petl.plugin;
  
  import epmc.plugin.BeforeModelCreation;
  import epmc.prism.value.OperatorEvaluatorPRISMPow;
  import epmc.value.operatorevaluator.SimpleEvaluatorFactory;
  
  public class BeforeModelCreationPETL implements BeforeModelCreation {
  	public final static String IDENTIFIER = "before-model-creation-petl";
  
  	@Override
  	public String getIdentifier() {
  		return IDENTIFIER;
  	}
  
  	@Override
  	public void process() {
  		SimpleEvaluatorFactory.get().add(OperatorEvaluatorPRISMPow.Builder.class);
  	}
  
  }
  