code: def test_generate_one_cluster(self):
      data = data_generator(1, 10, 20).generate()
      assertion.eq(20, len(data))
      self.assert_dimension(data, 10)
  
file_path: pyclustering/pyclustering/cluster/tests/unit/ut_generator.py
imports: import unittest
  import matplotlib
  from pyclustering.cluster.generator import data_generator
  from pyclustering.tests.assertion import assertion
label_desc: Use image node_id 5 for calling the generator_unit_tests obj's underlying member method code with example usage: obj.test_generate_one_cluster() without return types