code: def clusters(request):
      # TODO: replace with make_blobs
      X = np.array(
          [
              [-0.40020753, -4.67055317, -0.27191127, -1.49156318],
              [0.37143349, -4.89391622, -1.23893945, 0.48318165],
              [8.625142, -1.2372284, 1.39301471, 4.3394457],
              [7.65803596, -2.21017215, 1.99175714, 3.71004654],
              [0.89319875, -5.37152317, 1.50313598, 1.95284886],
              [2.68362166, -5.78810913, -0.41233406, 1.94638989],
              [7.63541182, -1.99606076, 0.9241231, 4.53478238],
              [9.04699415, -0.74540679, 0.98042851, 5.99569071],
              [1.02552122, -5.73874278, -1.74804915, -0.07831216],
              [7.18135665, -3.49473178, 1.14300963, 4.46065816],
              [0.58812902, -4.66559815, -0.72831685, 1.40171779],
              [1.48620862, -5.9963108, 0.19145963, -1.11369256],
              [7.6625556, -1.21328083, 2.06361094, 6.2643551],
              [9.45050727, -1.36536078, 1.31154384, 3.89103468],
              [6.88203724, -1.62040255, 3.89961049, 2.12865388],
              [5.60842705, -2.10693356, 1.93328514, 3.90825432],
              [2.35150936, -6.62836131, -1.84278374, 0.51540886],
              [1.17446451, -5.62506058, -2.18420699, 1.21385128],
          ]
      )
  
      y = np.array(
          [0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0]
      )
  
      request.cls.clusters = Dataset(X, y)
  
imports: import sys
  import pytest
  import numpy
  import matplotlib.pyplot
  from scipy.sparse import csc_matrix, csr_matrix
  from numpy.testing import assert_array_almost_equal
  from sklearn.datasets import make_blobs
  from sklearn.cluster import KMeans, MiniBatchKMeans
  from sklearn.feature_extraction.text import TfidfVectorizer
  from tests.fixtures import Dataset
  from tests.base import VisualTestCase
  from yellowbrick.datasets import load_hobbies
  from yellowbrick.cluster.elbow import distortion_score
  from yellowbrick.cluster.elbow import KElbowVisualizer, kelbow_visualizer
  from yellowbrick.exceptions import YellowbrickValueError, YellowbrickWarning
  from tests.base import IS_WINDOWS_OR_CONDA
label_desc: Use image node_id 1 for calling a global function with example usage: clusters(request) without return types