def recent_unlocks(options = {})
      response = api_response("recent-unlocks", options[:limit])
      if options[:type]
        return response["requested_information"].select { |unlock| unlock["type"] == options[:type] }
      else
        return response["requested_information"]
      end
    end
def recent_unlocks(options = {})
      response = api_response("recent-unlocks", options[:limit])
      if options[:type]
        return response["requested_information"].select { |unlock| unlock["type"] == options[:type] }
      else
        return response["requested_information"]
      end
    end
Gets the recent unlocked items (radicals, Kanji and vocabulary).

 @param options [Hash] the options to limit the number and type of items.
 @return [Array<Hash>] hashes of unlocked items and related information.