Echo Nolan
Echo Nolan
I actually only removed *one* of the type parameters. It was (hopefully at least) the hardest one to do, but there is still some work left.
This is closely related to both #3272 and #3225, in the former we need to know the probability a block exists that is more than `max_length` higher than our best...
Hmm. I think what I'd do is change the mock so it always returns numbers with some prefix, and change the random generation in the Hedgehog test to always generate...