package bonsai

The result of an application-level component is a value of type 'incoming App_result.t. This value contains the view of the app, and also an inject function: a way for the holder of the Handle.t to send events into the application component.

If the application developer doesn't want to use incoming events, they should use Core_kernel.Nothing.t for the 'incoming type, and Core_kernel.Nothing.unreachable_code for the value of inject_incoming.