How to include class methods when added via self.included

[KieranP]

Consider the following common code to include a bunch of common instance/class methods:

module Something
  def self.included(base)
    base.extend(ClassMethods)
  end

  module ClassMethods
    def something
    end
  end

  def something
  end
end

class Post
  include Something
end

In Ruby, include is enough add both the class and instance methods because of the self.included block

In RBS however, in order to get this to work, I have to do the following in RBS (note the extend needed in the Post RBS definition that isn't needed in the Post Ruby class):

module Something
  module ClassMethods
    def something: () -> void
  end

  def something: () -> void
end

class Post
  extend Something::ClassMethods
  include Something
end

This isn't a big issue when hand writing all types, but tools like rbs-inline only generate a Post RBS file that look like this, and therefore only includes the instance methods:

class Post
  include Something
end

It would be nice if there were some way of RBS recognizing class methods defined in a module that is included, e.g.

module Something
  def self.something: () -> void
  def something: () -> void
end

class Post
  include Something
end

or

module Something
  class_methods do
    def something: () -> void
  end

  def something: () -> void
end

class Post
  include Something
end

Or does something like this already exist, and I'm just unable to see it in any of the RBS docs?