def bg_a
import bend-collections@1.0.0.0/src/math/generic.bend as Genericimport Base
import bend-collections@1.0.0.0/src/math/num.bend as N
286def bg_a(~T: Data, ~op: N.Op<T> -> T, ~test: N.Test<T> -> Bool, +a: T, +b: T, az: Bool) -> T:
287 match az:
288 case True{}:
289 b
290 case False{}:
291 bg_b(~T, ~op, ~test, a, b, test(N.IsZero{b}))