How do I actually use end point grid graph special case with Nodeblockers?

Hello. I’m making a 2D turn based game, and am having trouble with the SingleNodeBlocker component. Each creature blocks the node it’s standing on, and as such shouldn’t allow other creatures to walk through it. This ends up breaking the pathfinding because the path tries to navigate to an obstacle, can’t, and returns an error.

Searching through the code I did find the EndPointGridGraphSpecialCase() page, even had a gif to show exactly what I wanted (link below). Only problem is, I cannot for the life of me figure out how to actually use it.

Does the paid example 2d turn-based scene have the awnser to this? If not, may I ask how to achieve this goal?

https://arongranberg.com/astar/docs/abpath.html#EndPointGridGraphSpecialCase
Example image: My pretty buggy attempt at this.