Currently there is `GenericRandomSigner` that plugs to `rand_core::OsRng` that requires `getrandom` We'll need idiomatic API here to plug into provided Rng vs supplying one from here
Currently there is
GenericRandomSignerthat plugs torand_core::OsRngthat requiresgetrandomWe'll need idiomatic API here to plug into provided Rng vs supplying one from here