pub fn parallel_prime_caches(
db: &RootDatabase,
num_worker_threads: usize,
cb: &(dyn Fn(ParallelPrimeCachesProgress) + Sync),
)
pub fn parallel_prime_caches(
db: &RootDatabase,
num_worker_threads: usize,
cb: &(dyn Fn(ParallelPrimeCachesProgress) + Sync),
)