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are there any doc examples of using `Secret`s in prefect core? the only page I could find just says vaguely what they are and that you could set them in the context, but not how to actually do so

Yea I guess this isn’t very well documented! Here is an example for setting a secret in your user config file: <https://docs.prefect.io/guide/tutorials/slack-notifications.html#using-your-url-to-get-notifications>
to explicitly set a secret in context, simply:
```
prefect.context.secrets["MYSECRET"] = "VALUE"
```

you can also set secrets by env var, but the secret name must be all lowercase; e.g.
```
PREFECT__CONTEXT__SECRETS__MYSECRET=VALUE
```
will get converted to a secret with the name `mysecret`

great, thanks! could be a good link to add to the Secrets doc page :wink:

already done! <https://docs.prefect.io/api/unreleased/client/secrets.html>