included

# File actionpack/lib/action_controller/components.rb, line 38
    def self.included(base) #:nodoc:
      base.class_eval do
        include InstanceMethods
        include ActiveSupport::Deprecation
        extend ClassMethods
        helper HelperMethods

        # If this controller was instantiated to process a component request,
        # +parent_controller+ points to the instantiator of this controller.
        attr_accessor :parent_controller

        alias_method_chain :process_cleanup, :components
        alias_method_chain :set_session_options, :components
        alias_method_chain :flash, :components

        alias_method :component_request?, :parent_controller
      end
    end