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: statemachine.rb
    path of file: ./repos/sequencescape/app/models/request
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
# This is a module containing the standard statemachine for a request that needs it.
# It provides various callbacks that can be hooked in to by the derived classes.
require 'aasm'

# rubocop:todo Metrics/ModuleLength
module Re
    
    def destroy_aasm # rubocop:todo Metrics/MethodLength
      # Destroy all evidence of the statemachine we've inherited!  Ugly, but it works!
      old_machine = AASM::StateMachineStore.fetch(self) && AASM::StateMachineStore.fetch(self).machine(:default)
      if old_machine
        old_machine.events.keys.each do |event|
          undef_method(event)
          undef_method(:"#{event}!")
          undef_method(:"#{event}_without_validation!")
          undef_method(:"may_#{event}?")
        end
        old_machine.states.each { |state| undef_method(:"#{state}?") }
      end