Creating Custom Shuffleboard Widgets

I am trying to create a custom widget by following the docs.
In the tutorial, it uses the import edu.wpi.first.shuffleboard…
Whenever I try putting this in my own code, VSCode says “The import edu.wpi.first.shuffleboard cannot be resolved” and when I try building, I get the following message: error: package edu.wpi.first.shuffleboard.api.widget does not exist

Any help would be greatly appreciated

How are you creating your project? Did you start from an example plugin? Creating a Plugin — FIRST Robotics Competition documentation

I did not. Do I need to create a plugin to create a widget?

EDIT:
Nevermind. I read through the documentation more closely and I think I have it figured out.