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`from_source().deploy()` does not seem to push flows to S3 storage the way that `buidl_from_flow()`  did.  What is the correct way to do that now?

You can use `from_source` as shown <https://docs.prefect.io/latest/guides/prefect-deploy/#store-your-code-in-cloud-provider-storage|here>.

Hey, am I missing anything about `from_source()`.  It didn't seem to upload code to S3 on first deployment.

Prefect won’t upload the code for you, it assumes that the code is there. At runtime Prefect will pull the code from that location.