code: public EList<AbstractRule> getHiddenTokens() {
  		if (hiddenTokens == null) {
  			hiddenTokens = new EObjectResolvingEList<AbstractRule>(AbstractRule.class, this, XtextPackage.PARSER_RULE__HIDDEN_TOKENS);
  		}
  		return hiddenTokens;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated