* `SessionInit`: initializes requests session (see the `Sessions` section).
* `StaticServer`: serves static files (see the `Serving static files with Popcorn` section).
* `Router`: a mountable mini-app (see the `Mountable routers` section).
* `SessionInit`: initializes requests session (see the `Sessions` section).
* `StaticServer`: serves static files (see the `Serving static files with Popcorn` section).
* `Router`: a mountable mini-app (see the `Mountable routers` section).