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so i got it to the serialisation to work with the LocalAgent but with a DockerAgent it gives
```Failed to load and execute Flow's environment: TypeError('an integer is required (got type bytes)')```


is it wrong to use `LocalEnvironment` with the docker agent?

Hm no, that should be fine - can you share the environment code you used for your flow?

again it is python version <https://hub.docker.com/layers/prefecthq/prefect/all_extras-0.13.6/images/sha256-3dfd0ac5f392a153bb04895de1f789df613a6e4ae5fccf605f10b8dba572e8b2?context=explore>

looks like i must use 3.8.5 on my flow-submitting client end

ah that makes sense - you can configure that in the Docker storage interface via the `python_version` kwarg (in this case, specifying 3.8 should be sufficient - the minor version usually has no impact)

must i use docker storage when using docker agents?

Ah interesting - nope, but I assume you are specifying a Docker image via your environment metadata?

ah i am currently trying to execute a non-docker flow with the docker agent

or must i keep at least 2 agents one for docker and one for non-docker?

Are you sure you aren’t specifying `metadata` on your Environment?  The docker agent should raise an error if you don’t have a configured image for it to use.

Either way, if you add `metadata={"image": "prefecthq/prefect:0.13.6-python3.8"}` to your Environment initialization (or some other appropriate image for your Flow that has all the necessary dependencies + the right version of python) you should be good

ah i was starting the agent with CLI
```$ prefect agent start docker   -l dev -l docker -l gcs-flow-storage```

btw it is working now when i match the python versions