code: def channel(self) -> GrpcAsyncChannel:
      if self._credentials is not None:
          return aio.secure_channel(
              self.server_url,
              credentials=self._credentials,
              options=self._options,
              compression=self._compression,
              interceptors=self._interceptors,
          )
      return aio.insecure_channel(
          self.server_url,
          options=self._options,
          compression=self._compression,
          interceptors=self._interceptors,
      )
  
imports: from __future__ import annotations
  import asyncio
  import logging
  import time
  import typing
  from functools import cached_property
  from typing import TYPE_CHECKING
  from packaging.version import parse
  from ...exceptions import BentoMLException
  from ...grpc.utils import LATEST_PROTOCOL_VERSION
  from ...grpc.utils import import_generated_stubs
  from ...grpc.utils import import_grpc
  from ...grpc.utils import load_from_file
  from ..None import io_descriptors
  from ..service import Service
  from ..service.inference_api import InferenceAPI
  from ..utils import LazyLoader
  from .None import AsyncClient
  from .None import Client
  from .None import SyncClient
label_desc: Use image node_id 2 for calling the AsyncGrpcClient obj's underlying member method code with example usage: obj.channel() and returns: aio, aio