r.Header.Set("prefix", "")

		// Set delimiter value for "s3:delimiter" policy conditionals.
		r.Header.Set("delimiter", SlashSeparator)

		n := 0
		// Use the following trick to filter in place
		// https://github.com/golang/go/wiki/SliceTricks#filter-in-place
		for _, bucketInfo := range bucketsInfo {
			if globalIAMSys.IsAllowed(policy.Args{
				AccountName:     cred.AccessKey,

data = {
    "plumbus": {"description": "Freshly pickled plumbus", "owner": "Morty"},
    "portal-gun": {"description": "Gun to create portals", "owner": "Rick"},
}


class OwnerError(Exception):
    pass


def get_username():
    try:
        yield "Rick"
    except OwnerError as e:
        raise HTTPException(status_code=400, detail=f"Owner error: {e}")


@app.get("/items/{item_id}")