code: def test_check_k_type(k):
      X = np.random.rand(10, 2)
      y = np.ones(10)
  
      with pytest.raises(TypeError):
          ds_test = BaseDS(k=k)
          ds_test.fit(X, y)
  
imports: import unittest.mock
  from unittest.mock import Mock, MagicMock
  import numpy
  import pytest
  from sklearn.exceptions import NotFittedError
  from sklearn.neighbors import KNeighborsClassifier
  from deslib.base import BaseDS
  from deslib.util.dfp import frienemy_pruning_preprocessed
  from .conftest import create_base_classifier
label_desc: Use image node_id 5 for calling a global function with example usage: test_check_k_type(k) without return types