code: def __init__(
      self,
      deployment_name: str,
      app_name: str,
      *,
      sync: bool,
      handle_options: Optional[_HandleOptions] = None,
      _router: Optional[Router] = None,
      _request_counter: Optional[metrics.Counter] = None,
      _recorded_telemetry: bool = False,
  ):
      self.deployment_id = DeploymentID(deployment_name, app_name)
      self.handle_options = handle_options or _HandleOptions()
      self._recorded_telemetry = _recorded_telemetry
      self._sync = sync
  
      self.request_counter = (
          _request_counter
          or self._create_request_counter(app_name, deployment_name)
      )
  
      self._router: Optional[Router] = _router
  
imports: import asyncio
  import concurrent.futures
  import threading
  import warnings
  from dataclasses import dataclass
  from typing import Any, AsyncIterator, Dict, Iterator, Optional, Tuple, Union
  import ray
  from ray import serve
  from ray._raylet import GcsClient, ObjectRefGenerator
  from ray.serve._private.common import DeploymentID, RequestProtocol
  from ray.serve._private.default_impl import create_cluster_node_info_cache
  from ray.serve._private.router import RequestMetadata, Router
  from ray.serve._private.usage import ServeUsageTag
  from ray.serve._private.utils import DEFAULT, get_current_actor_id, get_random_string, is_running_in_asyncio_loop
  from ray.util import metrics
  from ray.util.annotations import Deprecated, DeveloperAPI, PublicAPI
label_desc: Use image node_id 1 to create a new _DeploymentHandleBase object  with example: obj = _DeploymentHandleBase(deployment_name, app_name)