docs: protected XExpression _generate(XInstanceOfExpression operator, IAppendable it, IExtraLanguageGeneratorContext context) {
  		appendReturnIfExpectedReturnedExpression(it, context);
  		it.append("isinstance("); //$NON-NLS-1$
  		generate(operator.getExpression(), it, context);
  		it.append(", "); //$NON-NLS-1$
  		it.append(operator.getType().getType());
  		it.append(")"); //$NON-NLS-1$
  		return operator;
  	}