code: def __is_valid(loc_data):
      
      for key, [value, func] in SENSOR_TYPES.items():
          if (key != CONDITION and key != STATIONNAME and key != MEASURED):
              if (func is not None):
                  sens_data = loc_data.get(value)
                  if func(sens_data) != 0:
                      return True
docs: Determine if this can be valid data (not all 0's).