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: transition_collection_partial_invalid_test.rb
    path of file: ./repos/state_machines/test/unit/transition_collection
    
    the code of the file until where you have to start completion: require 'test_helper'

class TransitionCollectionPartialInvalidTest < StateMachinesTest
  def setup
    @klass = Class.new do
      attr_accessor :ran_transaction
    end

    @callbacks = []

    @machine = StateMachines::Mach
    
  def setup
    @klass = Class.new do
      attr_accessor :ran_transaction
    end

    @callbacks = []

    @machine = StateMachines::Machine.new(@klass, initial: :parked)
    @machine.state :idling
    @machine.event :ignite
    @machine.before_transition { @callbacks << :before }
    @machine.after_transition { @callbacks << :after }
    @machine.around_transition { |block| @callbacks << :around_before; block.call; @callbacks << :around_after }

    class << @machine
      def within_transaction(object)
        object.ran_transaction = true
      end
    end