class_docstr: Regression test for issue #10232 : Exception in loadarff with quoted nominal attributes.
code: def test_attributes(self):
      assert_equal(len(self.meta._attributes), 2)
  
      age, smoker = self.meta._attributes.values()
  
      assert_equal(age.name, "age")
      assert_equal(age.type_name, "numeric")
      assert_equal(smoker.name, "smoker")
      assert_equal(smoker.type_name, "nominal")
      assert_equal(smoker.values, ["yes", "no"])
  
imports: import datetime
  import os
  import sys
  from os.path import join
  from io import StringIO
  import numpy
  from numpy.testing import assert_array_almost_equal, assert_array_equal, assert_equal, assert_
  import pytest
  from pytest import raises
  from scipy.io.arff.arffread import loadarff
  from scipy.io.arff.arffread import read_header, ParseArffError
label_desc: Use image node_id 2 for calling the TestQuotedNominal obj's underlying member method code with example usage: obj.test_attributes() without return types