code: def __init__(
      self,
      input_nodes: List[DeploymentHandle],
      compute_delay_secs,
  ):
      assert isinstance(input_nodes, list)
      self.handles = input_nodes
      self.compute_delay_secs = compute_delay_secs
  
file_path: ray/release/serve_tests/workloads/serve_handle_wide_ensemble.py
imports: import time
  import asyncio
  import click
  from typing import List
  from typing import Optional
  from ray import serve
  from ray.serve.handle import DeploymentHandle, RayServeSyncHandle
  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 CombineNode object  with example: obj = CombineNode(input_nodes, compute_delay_secs)