Ruby 2.7.6p219 (2022-04-12 revision c9c2245c0a25176072e02db9254f0e0c84c805cd)
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