code: def __init__(self, id: int, init_delay_secs=0):
      time.sleep(init_delay_secs)
      self.id = id
  
file_path: ray/release/serve_tests/workloads/deployment_graph_wide_ensemble.py
imports: import time
  import asyncio
  import click
  from typing import Optional
  from ray import serve
  from serve_test_cluster_utils import setup_local_single_node_cluster, setup_anyscale_cluster
  from serve_test_utils import save_test_results
  from benchmark_utils import benchmark_throughput_tps, benchmark_latency_ms
label_desc: Use image node_id 1 to create a new Node object  with example: obj = Node(id, init_delay_secs)