code: def test_simple_imputer_add_indicator_raises():
      # https://github.com/dask/dask-ml/issues/494
      pytest.importorskip("sklearn", minversion="0.21.dev0")
      imputer = dask_ml.impute.SimpleImputer(add_indicator=True)
  
      with pytest.raises(NotImplementedError):
          imputer.fit(dX)
  
file_path: dask-ml/tests/test_impute.py
imports: import dask.array
  import dask.dataframe
  import numpy
  import pandas
  import pandas.testing
  import pytest
  import sklearn.impute
  import dask_ml.datasets
  import dask_ml.impute
  from dask_ml._compat import DASK_2_26_0, PANDAS_1_2_0
  from dask_ml.utils import assert_estimator_equal
label_desc: Use image node_id 7 for calling a global function with example usage: test_simple_imputer_add_indicator_raises() without return types