static UnitOfWork callOnStartJob(JobService jobService, JobParameters jobParameters) {
      return new UnitOfWork(
          CALL_ON_START_JOB,
          /* jobService= */ jobService,
          /* jobParameters= */ jobParameters,
          /* remoteJobCallback= */ null,
          /* jobCallback= */ null,
          /* unbindIntent= */ null,
          /* boolValue= */ false,
          /* terminatingResult= */ RESULT_SUCCESS);
    }
Creats a Runnable that calls {@link JobService#callOnStartJobImpl(JobParameters)}.
jobdispatcher/src/main/java/com/firebase/jobdispatcher/JobService.java