code: public static int startNowOnce(@NonNull JobRequest.Builder baseBuilder) {
          PersistableBundleCompat extras = new PersistableBundleCompat();
          extras.putBoolean(EXTRA_ONCE, true);
  
          return baseBuilder
                  .startNow()
                  .addExtras(extras)
                  .build()
                  .schedule();
      }
docs: Schedules the daily job only once and runs it immediately. This is helpful if you want to reuse your job
  and want to trigger the execution immediately. It's possible to schedule a daily job normally with
  {@link #schedule(JobRequest.Builder, long, long)} and this method at the same time to trigger the
  execution immediately.
  
  @param baseBuilder The builder of your daily job.
  @return The unique ID for this job.