TensorBand.Paired: type of stelliferous@0.0.2.0
Import: import stelliferous@0.0.2.0/tensor_band.bend as TensorBand
Lines 121-125 of stelliferous@0.0.2.0/tensor_band.bend: https://jend.leeeet.dev/read.txt?path=stelliferous@0.0.2.0/tensor_band.bend&start_line=121&end_line=125

import Base

# Two trees of one shape, joined leaf by leaf. A left leaf without a partner
# keeps its own row range, so the left tree can be returned unchanged.
type Paired<-Left: Type,-Right: Type> is Type:
  Both{left: Left,right: Right}
  Only{left: Left,first: U32,rows: U32}

Uses (1):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32