public function load($replacements)
    {
        if (is_array($replacements)) {
            $variables = $replacements;
        } elseif (is_file($replacements)) {
            $variables = $this->loadContent($replacements);
        } else {
            throw new \RuntimeException('Config replacements must be a array or a file');
        }

        $this->content = $variables;
    }