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You can't detect this per-se, but using `first()` or `single()` will cancel the flow after the first element. So depending on your use case you might be able to use `onCompletion { }` or something like that. What are you trying to achieve?

Okay, i need a conditional to detect if need subscribe on events after first requests

In this case, as the flow does not allow detecting this, I need to create a parameter for this conditional

Why not expose a simple suspend function for the case where the user needs a single value, and expose a flow-based function for an actual subscription? It seems these are pretty different cases

If you want to be "generic", what about the callers that use `take(2)`?