code: def __init__(self, url: str):
      assert url.startswith(
          "http://"
      ), "Only support HTTP command channel"  # TODO
      _logger.info(f"Connect to trial command channel {url}")
      self._channel: HttpChannel = HttpChannel(url)
  
file_path: nni/nni/runtime/trial_command_channel/v3.py
imports: from __future__ import annotations
  import logging
  from typing_extensions import Literal
  import nni
  from nni.runtime.command_channel.http import HttpChannel
  from nni.typehint import ParameterRecord, TrialMetric
  from .base import TrialCommandChannel
label_desc: Use image node_id 1 to create a new TrialCommandChannelV3 object from inherited base classes: TrialCommandChannel with example: obj = TrialCommandChannelV3(url)