code: func (t *transaction) addJobToSet(job *Job, setName string, score float64) {
  	t.script(addJobToSetScript, redis.Args{job.id, setName, score}, nil)
  }
docs: // addJobToSet is a small function wrapper around addJobToSetScript.
  // It offers some type safety and helps make sure the arguments you pass through are correct.
  // The script will add the job to the given set with the given score iff the job exists
  // and has not been destroyed.