code: def test_n_neighbors_not_multiple_raise_warning():
      with pytest.warns(Warning):
          setup_test(n_neighbors=7)
  
file_path: DESlib/deslib/tests/util/test_knne.py
imports: import pytest
  import numpy
  from deslib.util import faiss_knn_wrapper
  from deslib.util import KNNE
label_desc: Use image node_id 11 for calling a global function with example usage: test_n_neighbors_not_multiple_raise_warning() without return types