FateEntry
Where one path's values end up.
A FateTable builds one entry per path the first time a value is logged there, which fixes the schema. Every later value for that path goes through the same entry.
Implementations must be safe to call from any thread and must not throw. To report a problem, use the registry's warning handler or drop the value. Don't let it reach the robot code that logged it.
Parameters
T
The type of value this entry accepts