code: def test_weights(self):
      assert_equal(
          np.sum(self.estimator.weights),
          self.estimator.n_base_estimators_,
      )
  
imports: import os
  import sys
  import unittest
  import numpy
  from sklearn.cluster import KMeans
  from sklearn.cluster import MiniBatchKMeans
  from sklearn.cluster import AgglomerativeClustering
  from sklearn.datasets import load_breast_cancer
  from numpy.testing import assert_equal
  from combo.models.cluster_comb import ClustererEnsemble
  from combo.models.cluster_comb import clusterer_ensemble_scores
label_desc: Use image node_id 2 for calling the TestClustererEnsemble obj's underlying member method code with example usage: obj.test_weights() without return types