code: def test_make_list():
      input_list = [1, 2, 3]
      output_list = _make_list(input_list)
      assert output_list == input_list
  
      input_not_list = "example"
      output_list = _make_list(input_not_list)
      assert output_list == [input_not_list]
  
      input_list = []
      output_list = _make_list(input_list)
      assert output_list == input_list
  
      input_value = 42
      output_list = _make_list(input_value)
      assert output_list == [input_value]
  
imports: import pandas
  import numpy
  import pytest
  from pdpbox.utils import FeatureInfo, _to_rgba, _check_col, _check_dataset, _make_list, _check_model, _check_classes, _check_memory_limit, _check_frac_to_plot, _calc_n_jobs, _get_string, _expand_params_for_interact, _calc_preds, _check_cluster_params, _check_plot_engine, _check_pdp_interact_plot_type
label_desc: Use image node_id 4 for calling a global function with example usage: test_make_list() without return types