Takes a Unity LineRenderer and creates colliders around the line. Colliders are not planar colliders like those generated by the LineRenderer.BakeMesh() function. Instead, colliders are a circular shape extruded along the line path.
Go to the Package Manager window, press the add button, and select "Add package from Git URL..."

Paste in this link: https://github.com/tlsharkey/LineColliders-Unity.git
You may get an error saying import failed. Paste in the link a second time.
Unity will then import the package and display a series of errors in the Console. Unity will automatically fix all of these, you can safely clear them.