Ruby 2.7.7p221 (2022-11-24 revision 168ec2b1e5ad0e4688e963d9de019557c78feed9)
Modules
Here is a list of all modules:
[detail level 123]
 Classes and their hierarchy.
 Defining methodsThere are some APIs to define a method from C
 Exception handlings
 deprecated macro APIs
 CRuby Embedding APIsCRuby interpreter APIs
 ruby(1) implementationA part of the implementation of ruby(1) command
 Core objects and their operations