PermuteBuild.picks: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/tensor/permute_build.bend as PermuteBuild
Lines 57-64 of bendtorch-core@0.1.0.0/src/tensor/permute_build.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/tensor/permute_build.bend&start_line=57&end_line=64

import Base
import bendtorch-core@0.1.0.0/src/tensor/axis_spec.bend as Axis

# One pick per input axis, from `cursor` on: the output coordinate that the
# axes send to it, as `Axis.scatter` selects it.
def picks(rank: Nat, +axes: List<&2, Nat>, +out: List<&2, Nat>, +cursor: Nat) -> Maybe<&2, List<&2, Pick>>:
  match rank:
    case 0n:
      Some{Nil{}}
    case 1n+p:
      Axis.prepend(Pick, located(out, Axis.position(axes, cursor)), picks(p, axes, out, 1n+cursor))

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  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/tensor/axis_spec.bend&name=position
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/axis_spec.bend&name=prepend
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/permute_build.bend&name=Pick
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/permute_build.bend&name=located