docs: @Check
  	public void checkUnmodifiableEventAccess(SarlBehaviorUnit unit) {
  		final boolean enable1 = !isIgnored(DISCOURAGED_OCCURRENCE_READONLY_USE);
  		final XExpression root = unit.getExpression();
  		final String occurrenceKw = this.grammarAccess.getOccurrenceKeyword();
  		for (final XFeatureCall child : EcoreUtil2.getAllContentsOfType(root, XFeatureCall.class)) {
  			if (occurrenceKw.equals(child.getFeature().getIdentifier())) {
  				checkUnmodifiableFeatureAccess(enable1, child, occurrenceKw);
  			}
  		}
  	}