def raw_content
      return if pseudo_license?
      unless File.exist?(path)
        raise Licensee::InvalidLicense, "'#{key}' is not a valid license key"
      end

      @raw_content ||= File.read(path, encoding: 'utf-8')
    end
def raw_content
      return if pseudo_license?
      unless File.exist?(path)
        raise Licensee::InvalidLicense, "'#{key}' is not a valid license key"
      end

      @raw_content ||= File.read(path, encoding: 'utf-8')
    end
Raw content of license file, including YAML front matter