Setup of Leviton Wifi light switch

I have one Leviton (Wifi) Decora wall switch I’m trying to add to Home Assistant. I found the following code and added it to the configuration.yaml file.

light:
  - platform: decora_wifi
    username: [email protected]
    password: mypassword

My question is after I enter this code into the config file and restart the controller, what happens next? Is the switch supposed to just show up automagically? Do I need to go add an integration? The instructions I found for this light just stopped after add this code to the yaml file. I’m not exactly new to home automation, but my experience is limited mostly to old X-10 and Alexa integration. Can someone let me know what is supposed to happen after I add the code? I didn’t see anything at all. No new devices, and nothing new in integrations to add. Any help would be appreciated.

Thank you,

Check your entities list for the devices.