code: def test_KDTree_is_KDTree64_subclass():
      assert issubclass(KDTree, KDTree64)
  
file_path: scikit-learn/sklearn/neighbors/tests/test_kd_tree.py
imports: import numpy
  import pytest
  from numpy.testing import assert_allclose, assert_equal
  from sklearn.neighbors._kd_tree import KDTree, KDTree32, KDTree64
  from sklearn.neighbors.tests.test_ball_tree import get_dataset_for_binary_tree
  from sklearn.utils.parallel import Parallel, delayed
label_desc: Use image node_id 1 for calling a global function with example usage: test_KDTree_is_KDTree64_subclass() without return types