Persistance with home assistant auto discovery about plantgateway HOT 1 OPEN

I can produce the desired results as seen in my mqtt topic:

prefix/sensor/plant_MAC_battery/config

{
	"state_topic": "plantgw/ALIAS/",
	"unit_of_measurement": "%",
	"value_template": "{{value_json.battery}}",
	"force_update": true,
	"name": "ALIAS_battery",
	"unique_id": "sensor.ALIAS_battery",
	"device_class": "battery"
}

Tested by directly modified /usr/local/lib/python3.7/dist-packages/plantgw/plantgw.py on all my polling machines and made a run each. Restarted home assistant (without having any manual mqtt sensor configuration) - waited a bit (while no data to mqtt was published by plant gateway).

By additionally retain the config message it works.

from plantgateway.