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: controller_additions.rb
    path of file: ./repos/versioncake/lib/versioncake
    
    the code of the file until where you have to start completion: require 'action_controller'

module VersionCake
  module ControllerAdditions
    extend ActiveSupport::Concern

    # set_version is the prepend filter that will determine the version of the
    # requests.
    included do
      if respo
    
    def configure_rails_view_versioning(version_context)
      return unless VersionCake.config.rails_view_versioning

      if version_context.result == :no_version &&
        VersionCake.config.missing_version_use_unversioned_template
        lookup_context.versions = nil
      else
        lookup_context.versions = version_context.available_versions.map { |n| :"v#{n}" }
      end