You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: foo.rb
    path of file: ./repos/aasm/spec/models
    
    the code of the file until where you have to start completion: module Fooable
  def self.included(base)
    base.class_eval do
      aasm do
        state :open, :initial => true, :before_exit => :before_exit
        state :closed, :before_enter => :before_enter
        state :final

        event :close, :success => :success_callback do
          transitions :from => [:open], :to => [:closed
    
  def self.included(base)
    base.class_eval do
      aasm do
        state :open, :initial => true, :before_exit => :before_exit
        state :closed, :before_enter => :before_enter
        state :final

        event :close, :success => :success_callback do
          transitions :from => [:open], :to => [:closed]
        end

        event :null do
          transitions :from => [:open], :to => [:closed, :final], :guard => :always_false
        end
      end
    end
  end