code: def test_banana_class_distribution():
      s0, s1 = setup_class_sizes()
      _, y = make_banana(size_classes=[s0, s1])
      assert np.sum(y == 0) == s0 and np.sum(y == 1) == s1
  
file_path: DESlib/deslib/tests/util/test_datasets.py
imports: import pytest
  import numpy
  from deslib.util.datasets import make_P2
  from deslib.util.datasets import make_banana
  from deslib.util.datasets import make_banana2
  from deslib.util.datasets import make_circle_square
  from deslib.util.datasets import make_xor
label_desc: Use image node_id 4 for calling a global function with example usage: test_banana_class_distribution() without return types