def grad_after

bendtorch-core@0.1.0.0 · src/autograd/backward_LAWS.bend:137

import Base
import bendtorch-core@0.1.0.0/src/autograd/backward.bend as Backward

137def grad_after(result: Result<&2, &2, Backward.Error, Backward.Tape>, +id: Nat) -> Result<&2, &2, Backward.Error, Maybe<&2, F32>>:
138  match result:
139    case Fail{error}:
140      Fail{error}
141    case Done{tape}:
142      Backward.grad(tape, id)