MlbendSelect.fold_of: def of mlbend-select@0.1.0.0
Import: import mlbend-select@0.1.0.0/main.bend as MlbendSelect
Lines 35-37 of mlbend-select@0.1.0.0/main.bend: https://jend.leeeet.dev/read.txt?path=mlbend-select@0.1.0.0/main.bend&start_line=35&end_line=37

import Base
import mlbend-split@0.1.1.0/main.bend as Split

# The rows of the fold f: the ones that test and the ones that train.
def fold_of(+fs: List<&2, Nat>, +f: Nat) -> Fold:
  Fold{Split.test_of(fs, f), Split.train_of(fs, f)}

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=mlbend-select@0.1.0.0/main.bend&name=Fold
  https://jend.leeeet.dev/definition.txt?path=mlbend-split@0.1.1.0/main.bend&name=test_of
  https://jend.leeeet.dev/definition.txt?path=mlbend-split@0.1.1.0/main.bend&name=train_of