Sgd.leaf_refusal: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/autograd/sgd.bend as Sgd
Lines 32-65 of bendtorch-core@0.1.0.0/src/autograd/sgd.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/autograd/sgd.bend&start_line=32&end_line=65

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

def leaf_refusal(node: Backward.Node) -> Maybe<&2, Error>:
  match node:
    case Backward.Leaf{}:
      None{}
    case Backward.Add{a, b, left, right}:
      Some{NotLeaf{}}
    case Backward.Sub{a, b, left, right}:
      Some{NotLeaf{}}
    case Backward.Mul{a, b, left, right}:
      Some{NotLeaf{}}
    case Backward.Sum{a, input}:
      Some{NotLeaf{}}
    case Backward.SumDims{a, input, kept}:
      Some{NotLeaf{}}
    case Backward.Matmul{a, b, left, right}:
      Some{NotLeaf{}}
    case Backward.MatmulNT{a, b, left, right}:
      Some{NotLeaf{}}
    case Backward.Relu{a, input}:
      Some{NotLeaf{}}
    case Backward.MseLoss{a, b, left, right}:
      Some{NotLeaf{}}
    case Backward.CrossEntropy{a, input}:
      Some{NotLeaf{}}
    case Backward.BatchedMatmul{a, b, left, right}:
      Some{NotLeaf{}}
    case Backward.Slice{a, input, kept, plan}:
      Some{NotLeaf{}}
    case Backward.Gathered{a, input, plan, entries}:
      Some{NotLeaf{}}
    case Backward.Constant{}:
      None{}
    case Backward.Frozen{id, inner}:
      leaf_refusal(inner)

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/sgd.bend&name=Error
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_backward.bend&name=Node