code: def get_dstack_runner_version() -> str:
      if settings.DSTACK_VERSION is not None:
          return settings.DSTACK_VERSION
      return (
          os.environ.get("DSTACK_RUNNER_VERSION", None)
          or get_latest_runner_build()
          or "latest"
      )
  
imports: import os
  import re
  from abc import ABC, abstractmethod
  from typing import List, Optional
  import git
  import requests
  import yaml
  from dstack import version
  from dstack._internal import settings
  from dstack._internal.core.models.backends.base import BackendType
  from dstack._internal.core.models.instances import InstanceOfferWithAvailability, InstanceState, LaunchedGatewayInfo, LaunchedInstanceInfo
  from dstack._internal.core.models.runs import Job, Requirements, Run
  from dstack._internal.utils.logging import get_logger
label_desc: Use image node_id 4 for calling a global function with example usage: get_dstack_runner_version() and returns: unknown, settings