BatchedMatmulLAWS.promote_left: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/tensor/batched_matmul_LAWS.bend as BatchedMatmulLAWS
Lines 292-299 of bendtorch-core@0.1.0.0/src/tensor/batched_matmul_LAWS.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/tensor/batched_matmul_LAWS.bend&start_line=292&end_line=299

import Base

# A 1-D left operand [k] is the row [1, k], a 1-D right one the column
# [k, 1].
def promote_left(dims: List<&2, Nat>) -> List<&2, Nat>:
  match dims:
    case +x <> Nil{}:
      [1n, x]
    case rest:
      rest

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