HippoPHP\Hippo\Checks\Whitespace\IndentationCheck::setIndentStyle PHP Method

    public function setIndentStyle($style)
    {
        $style = strtolower($style);
        switch ($style) {
            case self::INDENT_STYLE_SPACE:
            case self::INDENT_STYLE_TAB:
                $this->indentStyle = $style;
                break;
        }
        return $this;
    }