def exact.start
import mylsm-lsm-store@0.6.0.1/src/SstStreamIo.bend as SstStreamIoimport Base
93def exact.start(file: File, +needed: Nat) -> IO(File & Result<&1, &1, U32 & String, ExactResult>):
94 exact.loop(Nat.add(Nat.mul(2n, needed), 1n), ExactNeed{file, needed, Nil{}})