code: def load_docker_cache(platform, tag, docker_registry) -> None:
      """Imports tagged container from the given docker registry"""
      if docker_registry:
          env = os.environ.copy()
          env["DOCKER_CACHE_REGISTRY"] = docker_registry
          cmd = [
              "docker-compose",
              "-f",
              "docker/docker-compose.yml",
              "pull",
              platform,
          ]
          logging.info(
              "Running command: 'DOCKER_CACHE_REGISTRY=%s %s'",
              docker_registry,
              " ".join(cmd),
          )
          check_call(cmd, env=env)
      else:
          logging.info("Distributed docker cache disabled")
  
file_path: mxnet/ci/build.py
imports: import argparse
  import pprint
  import os
  import signal
  import subprocess
  from itertools import chain
  from subprocess import check_call
  from typing import *
  import yaml
  from util import *
label_desc: Use image node_id 8 for calling a global function with example usage: load_docker_cache(platform, tag, docker_registry) without return types