enqueue_at

# File activejob/lib/active_job/queue_adapters/resque_adapter.rb, line 34
        def enqueue_at(job, timestamp) #:nodoc:
          unless Resque.respond_to?(:enqueue_at_with_queue)
            raise NotImplementedError, "To be able to schedule jobs with Resque you need the "                "resque-scheduler gem. Please add it to your Gemfile and run bundle install"
          end
          Resque.enqueue_at_with_queue job.queue_name, timestamp, JobWrapper, job.serialize
        end