Output rows [start, stop) of an axis-1 (row-coded) Trellis projection as an
owned projection: each output row has its own code row and scale, so the
slice decodes exactly the same values. A leading-axis range of row-major
codes is already row-contiguous, so these are views of the parent's memory.
Output rows [start, stop) of an axis-1 (row-coded) Trellis projection as an owned projection: each output row has its own code row and scale, so the slice decodes exactly the same values. A leading-axis range of row-major codes is already row-contiguous, so these are views of the parent's memory.