code: public Quartz with(final JobDetail job, final Trigger trigger) {
      requireNonNull(job, "Job is required.");
      requireNonNull(trigger, "Trigger is required.");
      jobMap.put(job, trigger);
      return this;
    }
docs: Schedule the provided job and trigger.
  
  @param job A job to schedule.
  @param trigger A trigger for provided job.
  @return This quartz instance.