code: def test_standardize_lag_order_list_bool():
      # List input, booleans
      assert_equal(standardize_lag_order([0]), 0)
      assert_equal(standardize_lag_order([1]), 1)
      assert_equal(standardize_lag_order([0, 1]), [2])
      assert_equal(standardize_lag_order([0, 1, 0, 1]), [2, 4])
  
file_path: statsmodels/statsmodels/tsa/arima/tests/test_tools.py
imports: import numpy
  from numpy.testing import assert_equal, assert_raises
  from statsmodels.tsa.arima.tools import standardize_lag_order, validate_basic
label_desc: Use image node_id 5 for calling a global function with example usage: test_standardize_lag_order_list_bool() without return types