def bind.fin
import bend-kit-property@0.4.0.0/generate.bend as Generateimport Base
import bend-kit-random@0.1.0.1/random.bend as Rand
151def bind.fin(~A: Type, ~B: Type, ~k: A -> Rand.Rng -> B & Rand.Rng, ar: A & Rand.Rng) -> B & Rand.Rng:
152 (a, r) = ar
153 k(a, r)