code: def test_invalid_splits():
      assert_raises(
          ValueError,
          "Number of splits must be greater than 1.",
          BootstrapOutOfBag,
          0,
      )
  
imports: import numpy
  from mlxtend.evaluate import BootstrapOutOfBag
  from mlxtend.utils import assert_raises
label_desc: Use image node_id 3 for calling a global function with example usage: test_invalid_splits() without return types