code: def checksum_status(self, area_uuid, filename):
          
          url_safe_filename = urlparse.quote(filename)
          path = "/area/{uuid}/{filename}/checksum".format(uuid=area_uuid, filename=url_safe_filename)
          response = self._make_request('get', path)
          return response.json()
docs: Retrieve checksum status and values for a file
  
          :param str area_uuid: A RFC4122-compliant ID for the upload area
          :param str filename: The name of the file within the Upload Area
          :return: a dict with checksum information
          :rtype: dict
          :raises UploadApiException: if information could not be obtained