code: def get_last_upload_results(self):
          
          if os.path.isfile(constants.last_upload_results_file):
              logger.debug('Last upload file %s found, reading results.', constants.last_upload_results_file)
              with open(constants.last_upload_results_file, 'r') as handler:
                  return handler.read()
          else:
              logger.debug('Last upload file %s not found, cannot read results', constants.last_upload_results_file)
              return False
docs: returns (json): returns last upload json results or False