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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_report_firmware_updates(self, month=None, file_path=None):
 """Downloads a report of the firmware updates :param str file_path: [optional] location to store output file :param month: [default: utcnow] month as datetime instance, or string in YYYY-MM format :type month: str or datetime :return: The report structure :rtype: dict """

        api = self._get_api(billing.DefaultApi)
        month = self._month_converter(month)

        response = api.get_billing_report_firmware_updates(month=month)
        download_url = response.url
        file_path = self._filepath_converter(file_path, response.filename)
        if file_path:
            urllib.request.urlretrieve(download_url, file_path)
        return response