BendMlTensor.heads: def of bend-ml-tensor@0.1.2.0
Import: import bend-ml-tensor@0.1.2.0/main.bend as BendMlTensor
Lines 127-132 of bend-ml-tensor@0.1.2.0/main.bend: https://jend.leeeet.dev/read.txt?path=bend-ml-tensor@0.1.2.0/main.bend&start_line=127&end_line=132

import Base

def heads(rows: List<&2, List<&2, F32>>) -> List<&2, F32>:
  match rows:
    case Con{Con{+h, t}, rest}:
      h <> heads(rest)
    case _:
      Nil{}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List