protected function renderUsesLines()
    {
        $code = array();
        $indentation = $this->getIndentation();
        foreach ($this->uses as $use => $alias) {
            if ($alias === null) {
                $code[] = $indentation . 'use ' . $use . ';';
            } else {
                $code[] = $indentation . 'use ' . $use . ' as ' . $alias . ';';
            }
        }

        if (count($this->uses) > 0) {
            $code[] = null;
        }

        return $code;
    }