code: def __init__(self):
      self.leaks = []
  
imports: from math import ceil
  import sys
  import time
  import pytest
  import ray
  from ray._private import ray_constants
  import ray._private.gcs_utils
  from ray._private.test_utils import wait_for_condition, raw_metrics
  import numpy
  from ray._private.utils import get_system_memory
  from ray._private.utils import get_used_memory
  from ray._private.state_api_test_utils import verify_failed_task
  from ray.util.state.state_manager import StateDataSourceClient
label_desc: Use image node_id 1 to create a new Leaker object  with example: obj = Leaker()