Converts a POD value or tuple to a human-readable string for logging our user
display purposes. The output is based on the JSONPODValue format,
but also handles the case where the whole value is undefined (but not
undefined values inside of a tuple).
Converts a POD value or tuple to a human-readable string for logging our user display purposes. The output is based on the JSONPODValue format, but also handles the case where the whole value is undefined (but not undefined values inside of a tuple).