code: def _get_extra_tags_from_env() -> dict:
      env_vars = (
          "BUILDKITE_JOB_ID",
          "BUILDKITE_PULL_REQUEST",
          "BUILDKITE_PIPELINE_SLUG",
          "BUILDKITE_SOURCE",
          "RELEASE_FREQUENCY",
      )
      return {key.lower(): os.getenv(key, "") for key in env_vars}
  
imports: import os
  import time
  import traceback
  from typing import Optional, List, Tuple
  from ray_release.alerts.handle import handle_result, require_result
  from ray_release.anyscale_util import get_cluster_name
  from ray_release.buildkite.output import buildkite_group, buildkite_open_last
  from ray_release.cluster_manager.cluster_manager import ClusterManager
  from ray_release.cluster_manager.full import FullClusterManager
  from ray_release.cluster_manager.minimal import MinimalClusterManager
  from ray_release.command_runner.job_runner import JobRunner
  from ray_release.command_runner.command_runner import CommandRunner
  from ray_release.command_runner.anyscale_job_runner import AnyscaleJobRunner
  from ray_release.test import Test
  from ray_release.config import DEFAULT_BUILD_TIMEOUT, DEFAULT_CLUSTER_TIMEOUT, DEFAULT_COMMAND_TIMEOUT, DEFAULT_WAIT_FOR_NODES_TIMEOUT, RELEASE_PACKAGE_DIR, DEFAULT_AUTOSUSPEND_MINS
  from ray_release.template import load_test_cluster_compute
  from ray_release.exception import ReleaseTestConfigError, ReleaseTestSetupError, CommandError, PrepareCommandError, CommandTimeout, PrepareCommandTimeout, TestCommandError, TestCommandTimeout, ClusterEnvCreateError
  from ray_release.file_manager.job_file_manager import JobFileManager
  from ray_release.logger import logger
  from ray_release.reporter.reporter import Reporter
  from ray_release.result import Result, ResultStatus, handle_exception
  from ray_release.signal_handling import setup_signal_handling, reset_signal_handling, register_handler
label_desc: Use image node_id 1 for calling a global function with example usage: _get_extra_tags_from_env() and returns: unknown