code: def _get_code_artifact(self, artifact_string):
      artifact_string, base_url, is_id = util.parse_artifact_string(
          artifact_string
      )
      if is_id:
          code_artifact = wandb.Artifact._from_id(
              artifact_string, self._api._client
          )
      else:
          code_artifact = self._api.artifact(
              name=artifact_string, type="code"
          )
      if code_artifact is None:
          raise LaunchError("No code artifact found")
      if code_artifact.state == ArtifactState.DELETED:
          raise LaunchError(
              f"Job {self.name} references deleted code artifact {code_artifact.name}"
          )
      return code_artifact
  
imports: import json
  import os
  import shutil
  import sys
  import time
  from typing import TYPE_CHECKING, Any, Dict, List, Mapping, Optional
  from wandb_gql import gql
  import wandb
  from wandb import util
  from wandb.apis import public
  from wandb.apis.normalize import normalize_exceptions
  from wandb.errors import CommError
  from wandb.sdk.artifacts.artifact_state import ArtifactState
  from wandb.sdk.data_types._dtypes import InvalidType, Type, TypeRegistry
  from wandb.sdk.launch.errors import LaunchError
  from wandb.sdk.launch.utils import LAUNCH_DEFAULT_PROJECT, _fetch_git_repo, apply_patch, convert_jupyter_notebook_to_script
label_desc: Use image node_id 4 for calling the Job obj's underlying member method code with example usage: obj._get_code_artifact(artifact_string) and returns: code_artifact