No module named "mqtt_json"

Hi! I am trying to follow some guides on making my own light controllers. I had this working in the past and I am coming back now trying to get them working again.

I am running into the issue when setting up the light in configuration.yml with platform. Says
No module named “mqtt_json”.
I am having a hard time finding anything on this, so not really sure if it’s been deprecated and there is an alternative setup I should be using.

Thanks in advance.

What code have you got? Pretty well impossible to help without seeing what you have tried…

In saying that, the MQTT JSON Integration is not for lights… so… lets see your code.

Docs help:

As you give no information, you will likely get no help.