BackwardPROOF.contribution_targets: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/autograd/backward_PROOF.bend as BackwardPROOF
Lines 164-169 of bendtorch-core@0.1.0.0/src/autograd/backward_PROOF.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/autograd/backward_PROOF.bend&start_line=164&end_line=169

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

def contribution_targets(contributions: List<&2, Backward.Contribution>) -> List<&2, Nat>:
  match contributions:
    case Nil{}:
      Nil{}
    case Con{Backward.Contribution{target, value}, rest}:
      target <> contribution_targets(rest)

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/backward.bend&name=Contribution