class ActiveAdmin::ResourceController::Decorators::Wrapper

def self.wrap!(parent, name)
  ::Class.new parent do
    delegate :reorder, :page, :current_page, :total_pages, :limit_value,
             :total_count, :offset, :to_key, :group_values,
             :except, :find_each, :ransack, to: :object
    define_singleton_method(:name) { name }
  end
end