code: def __init__(
      self,
      m1: DeploymentHandle,
      m2: Union[DeploymentHandle, Dict[str, DeploymentHandle]],
      m2_nested: bool = False,
  ):
      self.m1 = m1
      self.m2 = m2.get(NESTED_HANDLE_KEY) if m2_nested else m2
  
imports: import asyncio
  from typing import Dict, Union
  from ray import serve
  from ray.actor import ActorHandle
  from ray.serve.handle import DeploymentHandle
label_desc: Use image node_id 1 to create a new Combine object  with example: obj = Combine(m1, m2, m2_nested)