Objects from this class represent server language objects whose conversion was requested but which are judged (by the server side of the interface) to have no equivalent R form. Rather than generating an error, the interface returns an object of this class, which can have convertible attributes. Fields of a convertible object may be unconvertible without preventing conversion of the rest of the parent object.
The names of the class and module in the server language.
The language name (for communicating with users), not the interface class name.
A list with names that should be interpreted as properties of the object.
Chambers, John M. (2016) Extending R, Chapman & Hall/CRC. ( Chapter 12, discussing this package, is included in the package: ../doc/Chapter_XR.pdf.)