def comb_k
import bend-collections-laws-math@1.0.0.0/src/math/generic.bend as Genericimport Base
import bend-collections-laws-math@1.0.0.0/src/math/num.bend as N
502def comb_k(~T: Data, ~op: N.Op<T> -> T, ~test: N.Test<T> -> Bool, +n: T, +k: T) -> Result<&2, &2, N.NumError, T>:
503 ok(T, comb_go(~T, ~op, ~test, fuel(), n, op(N.ZeroOp{}), k, (op(N.One{}), True{}), test(N.Lt{op(N.ZeroOp{}), k})))