code: def test_raise_error_unknown_str_in_col_type(tmp_path):
      with pytest.raises(ValueError) as info:
          ak.StructuredDataClassifier(
              column_types={"age": "num", "parch": "categorical"},
              directory=tmp_path,
              seed=test_utils.SEED,
          )
  
      assert 'column_types should be either "categorical"' in str(
          info.value
      )
  
file_path: autokeras/autokeras/tasks/structured_data_test.py
imports: from unittest import mock
  import numpy
  import pandas
  import pytest
  from tensorflow import nest
  import autokeras
  from autokeras import test_utils
label_desc: Use image node_id 1 for calling a global function with example usage: test_raise_error_unknown_str_in_col_type(tmp_path) without return types