class_docstr: A simple command channel based on HTTP.
  
  Check the server for details. (``ts/nni_manager/common/command_channel/http.ts``)
code: def send(self, command: Command) -> None:
      requests.put(self._url, json=command)
  
file_path: nni/nni/runtime/command_channel/http.py
imports: from __future__ import annotations
  import logging
  import requests
  from .base import Command, CommandChannel
label_desc: Use image node_id 2 for calling the HttpChannel obj's underlying member method code with example usage: obj.send(command) without return types