class_docstr: Test DecisionBoundariesVisualizer
class_docstr_tok: ["Test","DecisionBoundariesVisualizer"]
docstr: Test quick function shortcut of visualizer
docstr_tok: ["Test","quick","function","shortcut","of","visualizer"]
code: def test_quick_method(self):
      """
      Test quick function shortcut of visualizer
      """
      model = naive_bayes.MultinomialNB()
  
      data = datasets.load_iris()
      feature_names = [
          name.replace(" ", "_") for name in data.feature_names
      ]
      df = pd.DataFrame(data.data, columns=feature_names)
      X = df[["sepal_length_(cm)", "sepal_width_(cm)"]].values
      y = data.target
  
      decisionviz(model, X, y)
  
imports: import sys
  import pytest
  import numpy
  from unittest import mock
  from tests.base import VisualTestCase
  from yellowbrick.contrib.classifier import *
  from yellowbrick.exceptions import YellowbrickTypeError
  from yellowbrick.exceptions import YellowbrickValueError
  from sklearn import datasets
  from sklearn import neighbors
  from sklearn import naive_bayes
label_desc: Use image node_id 20 for calling the TestDecisionBoundariesVisualizer obj's underlying member method code with example usage: obj.test_quick_method() without return types