We request evidence that the RESP sent back by Redis can be deserialized
into an instance of a B.
We request evidence that the RESP sent back by Redis can be deserialized
into an instance of a B.
Ensuring this is the case here guarantees that no instance of a Protocol
can ever be constructed unless proven that the response we eventually
will get back can be deserialized into the expected type B.
A
The sum/co-product type of response(s) expected from Redis