code: def _start_runner(
      hostname: str,
      project_ssh_private_key: str,
      user_ssh_public_key: str,
      config: _ShimConfig,
      launch_command: str,
  ):
      _setup_instance(
          hostname=hostname,
          ssh_private_key=project_ssh_private_key,
          user_ssh_public_key=user_ssh_public_key,
      )
      _launch_runner(
          hostname=hostname,
          ssh_private_key=project_ssh_private_key,
          config=config,
          launch_command=launch_command,
      )
  
imports: import hashlib
  import subprocess
  import tempfile
  import time
  from threading import Thread
  from typing import Dict, List, Optional, Tuple
  from pydantic import BaseModel
  from dstack._internal.core.backends.base.compute import Compute, get_instance_name, get_shim_commands
  from dstack._internal.core.backends.base.offers import get_catalog_offers
  from dstack._internal.core.backends.lambdalabs.api_client import LambdaAPIClient
  from dstack._internal.core.backends.lambdalabs.config import LambdaConfig
  from dstack._internal.core.models.backends.base import BackendType
  from dstack._internal.core.models.instances import InstanceAvailability, InstanceOffer, InstanceOfferWithAvailability, LaunchedInstanceInfo
  from dstack._internal.core.models.runs import Job, Requirements, Run
label_desc: Use image node_id 7 for calling a global function with example usage: _start_runner(hostname, project_ssh_private_key, user_ssh_public_key, config, launch_command) without return types