Ruby  2.7.1p83(2020-03-31revisiona0c7c23c9cec0d0ffcba012279cd652d28ad5bf3)
Namespace List
Here is a list of all namespaces with brief descriptions:
[detail level 123]
 NrubyThe main namespace
 NbackwardBackwards compatibility layer
 NcxxanyargsProvides ANYARGS deprecation warnings