Ruby: how to use self.included meaningfully, solution and use case

solution_and_use_case.rb

module CreateClassMethodsUponInclude
  def self.included(base)
    base.define_singleton_method :included do |base|
      base.extend(self)
    end
  end
end

module MyModule
  include CreateClassMethodsUponInclude

  def something
    'something '
  end
end

class MyClass
  include MyModule
end

p MyClass.something + MyClass.new.something + 'awesomeness'