code: def setUp(self):
      token = os.environ.get("CLOUD_TOKEN")
      self.assertIsNotNone(token)
  
      self.__token = token
      self.__disk_client = yandex_disk(token)
  
file_path: pyclustering/ci/cloud/tests/test_cloud.py
imports: import os
  import unittest
  from cloud.task import task
  from cloud.task_handler import task_handler
  from cloud.yandex_disk import yandex_disk
label_desc: Use image node_id 1 for calling the cloud_unit_test obj's underlying member method code with example usage: obj.setUp() without return types