code: def getIndexRepresentorDoubleData(self):
      clusters = [[0, 1, 2, 3], [4, 5, 6, 7]]
      data = [
          5.4562,
          5.1235,
          4.9235,
          4.8712,
          8.3451,
          8.4215,
          8.6535,
          8.7345,
      ]
  
      return cluster_encoder(
          type_encoding.CLUSTER_INDEX_LIST_SEPARATION, clusters, data
      )
  
imports: import unittest
  import math
  import matplotlib
  from pyclustering.cluster.encoder import cluster_encoder
  from pyclustering.cluster.encoder import type_encoding
label_desc: Use image node_id 11 for calling the Test obj's underlying member method code with example usage: obj.getIndexRepresentorDoubleData() and returns: cluster_encoder