def drain.end
import bend-kit-runner@0.13.0.1/runner.bend as Runnerimport Base
1701def drain.end(-A: Data, x: Runner<A> & Bool) -> Ran(A):
1702 (r, done) = x
1703 (r, Bool.pick(Out(Unit), done, Done{Unit{}}, Fail{(62, "runner: drain ran out of rounds")}))