ObserveWorkManagerInternal.kt

override fun getStatusById(id: UUID): LiveData<WorkStatus> {
    val dao = mWorkDatabase.workSpecDao()
    val inputLiveData = dao.getWorkStatusPojoLiveDataForIds(listOf(id.toString()))
    return LiveDataUtils.dedupedMappedLiveDataFor<List<WorkSpec.WorkStatusPojo>, WorkStatus>(inputLiveData) { input ->
        var workStatus: WorkStatus? = null
        if (null != input && input.isNotEmpty()) {
            workStatus = input [0].toWorkStatus()
        }
        workStatus
    }
}