My aim was to get the the diameter of a circular face. My hope is that some time in the future, I will be able to use the face as an axis for a circular pattern, if it ever gets implemented in Script.
This is how I used it
Options.append(["Select Tooth OD", WindowsInputTypes.Face, None]) #[2]
ODF = Values[2]
Ledges = ODF.GetEdges()
OD = Ledges[0].Diameter
If the reference guide even had just 1 line like x = face.GetEdges() it would have made all the difference.