# File lib/authlogic/acts_as_authentic/logged_in_status.rb, line 29
        def self.included(klass)
          return if !klass.column_names.include?("last_request_at")

          klass.class_eval do
            include InstanceMethods
            scope(
              :logged_in,
              lambda do
                where(
                  "last_request_at > ? and current_login_at IS NOT NULL",
                  logged_in_timeout.seconds.ago
                )
              end
            )
            scope(
              :logged_out,
              lambda do
                where(
                  "last_request_at is NULL or last_request_at <= ?",
                  logged_in_timeout.seconds.ago
                )
              end
            )
          end
        end