code: def test_default():
      p = permutation_test(treatment, control)
      assert round(p, 3) == 0.060, p
  
file_path: mlxtend/mlxtend/evaluate/tests/test_permutation.py
imports: import numpy
  from mlxtend.evaluate import permutation_test
  from mlxtend.utils import assert_raises
label_desc: Use image node_id 4 for calling a global function with example usage: test_default() without return types