public function getFunctions()
{
return [new \Twig_SimpleFunction('format_price', [$this, 'formatPrice'], ['is_safe' => ['html']]), new \Twig_SimpleFunction('convert_price', [$this, 'convertPrice'], ['is_safe' => ['html']]), new \Twig_SimpleFunction('currencies', [$this, 'getCurrencies'], ['is_safe' => ['html']])];
}