code: public static FormElement generateHiddenForm(
          String action,
          Method method,
          Target target,
          Map<String, String> values) {
  
          return generateHiddenForm(action, method, target.getRepresentation(), values);
      }
docs: Generates a form element with hidden input fields.<p>
  
  @param action the form action
  @param method the form method
  @param target the form target
  @param values the input values
  
  @return the generated form element