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kotlinlang

What would be a better way of doing the following:
```
listOf(
  CoroutineScope(<http://Dispatchers.IO|Dispatchers.IO>).launch { ddbTools.deleteTableInRegions(destinationTable, destinationRegions) },
  CoroutineScope(<http://Dispatchers.IO|Dispatchers.IO>).launch { jobService.deleteJobTable() },
  CoroutineScope(<http://Dispatchers.IO|Dispatchers.IO>).launch { jobService.deleteCheckpointTable() }).joinAll()
```

<@U88VCFXB7> 
```
withContext(<http://Dispatchers.IO|Dispatchers.IO>) {
    launch { … }
    launch { … }
    launch { … }
} //No need for joinAll() thanks to structured concurrency
```

<@U3ZLHBTLG> follow-up question: how best to structure things around one launch depending on another?

<@U88VCFXB7> Don't launch in that case. Just execute code sequentially.

so just let the fact that it will block without launch dictate that it needs to finish before continuing with launches