TensorBackward.popped: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/autograd/tensor_backward.bend as TensorBackward
Lines 1298-1305 of bendtorch-core@0.1.0.0/src/autograd/tensor_backward.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_backward.bend&start_line=1298&end_line=1305

import Base

# The tape without its newest entry.
def popped(tape: Tape) -> Tape:
  Tape{entries} = tape
  match entries:
    case Nil{}:
      Tape{Nil{}}
    case Con{entry, rest}:
      Tape{rest}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/autograd/tensor_backward.bend&name=Tape