code: def __init__(self, handles):
      self.handles = handles
  
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 Combine object  with example: obj = Combine(handles)