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: stack.rb
    path of file: ./repos/jets/lib/jets
    
    the code of the file until where you have to start completion: module Jets
  class Stack
    include Main::Dsl
    include Parameter::Dsl
    include Output::Dsl
    include Resource::Dsl

    class << self
      extend Memoist

      # Track all command subclasses.
      def subclasses
        @subclasses ||= []
      end

      def inherited(base)
        super
        self.subclasses << base if base.name
      end

      # klass = Jets::Stack.new_class("Bucket3")
      def new_class(class_name, &block)
        # https://stackoverflow.com/ques
    
      def new_class(class_name, &block)
        # https://stackoverflow.com/questions/4113479/dynamic-class-definition-with-a-class-name
        # Defining the constant this way gets around: SyntaxError: dynamic constant assignment error
        klass = Class.new(Jets::Stack) # First klass is an anonymous class. IE: class.name is nil
        klass = Object.const_set(class_name, klass) # now klass is a named class
        Jets::Stack.subclasses << klass # mimic inherited hook because

        # Must run class_eval after adding to subclasses in order for the resource declarations in the
        # so that the resources get registered to the right subclass.
        klass.class_eval(&block)
        klass # return klass
      end