__app__.py (required)

The ``__app__.py``file is required for harp applications and should contain one subclass of harp.config.Application named after the last part of the application’s package name.

For example, if your application is defined in the foo.bar.baz package, the __app__.py file should contain a Baz class that inherits from harp.config.Application.

Please look at existing examples for content details, for now.

The lifecycle of each loaded application will look like the following simplified sequence diagram:

Application lifecycle