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Hello! Is flow registration to prefect cloud asynchronous? I am trying to register multiple flows concurrently. Are there any examples of that?

The API only takes in one Flow so not really. Is it too slow for you? You are the one who has a CI/CD pipeline so you made a way to determine only the Flows with changes right?

yeah that’s me. It’s still too slow :disappointed:. I’m also curious what exactly goes into building the hash generated from `flow.serialized_hash()` . I’ve noticed that sometimes the hash changes even though there were no changes in the code. Does it have anything to do with the pickle? I noticed that even when there are no code changes, the pickles contents changed.

That must mean you have something like `datetime.datetime.now()` in your schedule or something? Some timestamps that changes value from run to run

That could be it actually; let me double check

This works by the way — it’s somewhat faster.
```# where register_flows is a function that calls flow.register()

threads = []
for project in projects:
           t = threading.Thread(
               target=register_flows, args=(project)
           )
           threads.append(t)
           t.start()

for thread in threads:
       thread.join()```

Ah ok you could wrap the flow.register call in async too maybe

Yeah that works! But I’m not sure how to await them from a CLI