def wix_light_extension(extension)
      unless extension.is_a?(String)
        raise InvalidValue.new(:wix_light_extension, "be an String")
      end

      wix_light_extensions << extension
    end
def wix_light_extension(extension)
      unless extension.is_a?(String)
        raise InvalidValue.new(:wix_light_extension, "be an String")
      end

      wix_light_extensions << extension
    end
Set the wix light extensions to load

 @example
   wix_light_extension 'WixUtilExtension'

 @param [String] extension
   A list of extensions to load

 @return [Array]
   The list of extensions that will be loaded