TensorBackwardLAWS.sole_target: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/autograd/tensor_backward_LAWS.bend as TensorBackwardLAWS
Lines 120-125 of bendtorch-core@0.1.0.0/src/autograd/tensor_backward_LAWS.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_backward_LAWS.bend&start_line=120&end_line=125

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

def sole_target(found: Maybe<&1, Backward.Contribution>) -> Maybe<&2, Nat>:
  match found:
    case None{}:
      None{}
    case Some{Backward.Contribution{target, shape, gradient}}:
      Some{target}

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  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/tensor_backward.bend&name=Contribution