code: def test_load_csv_columns_single_fold(
      landmark_uncertainty_tuples_path, folds
  ):
      returned_single_fold = load_csv_columns(
          landmark_uncertainty_tuples_path[0],
          "Validation Fold",
          folds,
          cols_to_return=[
              "S-MHA Error",
              "E-MHA Error",
              "Validation Fold",
          ],
      )
      assert list(returned_single_fold["Validation Fold"]).count(
          folds
      ) == len(list(returned_single_fold["Validation Fold"]))
  
file_path: pykale/tests/loaddata/test_tabular_access.py
imports: import logging
  import numpy
  import pytest
  from kale.loaddata.tabular_access import load_csv_columns
  from kale.utils.seed import set_seed
label_desc: Use image node_id 2 for calling a global function with example usage: test_load_csv_columns_single_fold(landmark_uncertainty_tuples_path, folds) without return types