MlbendSplit.train_row: def of mlbend-split@0.1.1.0
Import: import mlbend-split@0.1.1.0/main.bend as MlbendSplit
Lines 156-158 of mlbend-split@0.1.1.0/main.bend: https://jend.leeeet.dev/read.txt?path=mlbend-split@0.1.1.0/main.bend&start_line=156&end_line=158

import Base

# The row, out of the fold.
def train_row(fold: Nat, f: Nat, +train: List<&2, Nat>, i: Nat) -> List<&2, Nat>:
  Bool.pick(List<&2, Nat>, Nat.is_eq(fold, f), train, List.append(&2, Nat, train, Con{i, Nil{}}))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.pick
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.append
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_eq