code: def get_gears_cache_size():
          
          LOGGER.debug("InjectorCachedGearService.get_gears_cache_size")
          ret = None
          args = {'properties': {'OPERATION': 'COUNT_GEARS_CACHE',
                                 'CACHE_ID': InjectorCachedGearService.cache_id}}
  
          result = InjectorCachedGearService.requester.call(args).get()
          if result.rc == 0:
              ret = int(result.response_content)
          else:
              err_msg = 'InjectorCachedGearService.get_gears_cache_size - Problem while getting gears cache size' + \
                        'Reason: ' + str(result.response_content) + '-' + str(result.error_message) + \
                        " (" + str(result.rc) + ")"
              LOGGER.warning(err_msg)
          return ret
docs: :return: the Ariane gears cache size defined by InjectorCachedGearService.cache_id