code: public static function conditionalButton($leftLabel, $rightLabel, $options = [])
      {
          $lOptions = ArrayHelper::remove($options, 'left', []);
          $rOptions = ArrayHelper::remove($options, 'right', []);
          $oOptions = ArrayHelper::remove($options, 'or', []);
  
          Ui::addCssClasses($options, ['ui', 'buttons']);
          Ui::addCssClasses($lOptions, ['ui', 'button']);
          Ui::addCssClasses($rOptions, ['ui', 'button']);
          Ui::addCssClass($oOptions, 'or');
  
          $lines = [];
          $lines[] = static::button($leftLabel, $lOptions);
          $lines[] = Ui::tag('div', '', $oOptions);
          $lines[] = static::button($rightLabel, $rOptions);
  
          return Ui::tag('div', implode("\n", $lines), $options);
      }
docs: Generates a [conditional button](http://semantic-ui.com/elements/button.html#conditionals)
  
  @param string $leftLabel the label to appear on the left side
  @param string $rightLabel the label to appear on the right side
  @param array $options the tag options in terms of name-value pairs
  
  @return string the generated conditional button tag