code: def __init__(self):
      pass
  
file_path: ray/python/ray/util/collective/tests/single_node_cpu_tests/test_gloo_group_isolation.py
imports: from python.ray.util.collective.types import Backend
  import ray
  import ray.util.collective
  import time
label_desc: Use image node_id 1 to create a new Worker object  with example: obj = Worker()