Slice.narrow: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/tensor/slice.bend as Slice
Lines 425-429 of bendtorch-core@0.1.0.0/src/tensor/slice.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/tensor/slice.bend&start_line=425&end_line=429

import Base
import bendtorch-core@0.1.0.0/src/shape/core.bend as Shape
import bendtorch-core@0.1.0.0/src/tensor/core.bend as Core

# PyTorch's input.narrow(dim, start, length): the slice start:start + length
# at axis `dim`, refused when start + length passes the extent.
def narrow(input: Core.Dynamic, +dim: U32, +start: U32, +length: U32) -> Core.Dynamic & Result<&2, &1, Error, Core.Dynamic>:
  Core.Packed{+shape, tensor} = input
  narrow_checked(shape, tensor, dim, start, length, refusal(Shape.dimensions(shape), dim, 1))

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/shape/core.bend&name=dimensions
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/core.bend&name=Dynamic
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/slice.bend&name=Error
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/slice.bend&name=narrow_checked
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/tensor/slice.bend&name=refusal