There is no undeployed adapter here. I use Django which exposes an asgi interface.
Traditionally, one would use something like Daphne as an HTTP<>asgi adapter. In my case, I use Magnum as a Lambda<>asgi adapter.
For development, I just use Django's build-in development server (which auto-reloads on code changes and alike).
So there's not "extra" code that's only used for development, and I really don't maintain any extra glue code myself either.