code: def _extra_from_obj(
      self, obj: Union["boto3.s3.Object", "boto3.s3.ObjectSummary"]
  ) -> Dict[str, str]:
      extra = {
          "etag": obj.e_tag[1:-1],  # escape leading and trailing quote
      }
      if not hasattr(obj, "version_id"):
          # Convert ObjectSummary to Object to get the version_id.
          obj = self._s3.Object(obj.bucket_name, obj.key)  # type: ignore[union-attr]
      if (
          hasattr(obj, "version_id")
          and obj.version_id
          and obj.version_id != "null"
      ):
          extra["versionID"] = obj.version_id
      return extra
  
imports: import os
  import time
  from pathlib import PurePosixPath
  from typing import TYPE_CHECKING, Dict, Optional, Sequence, Tuple, Union
  from urllib.parse import parse_qsl, urlparse
  from wandb import util
  from wandb.errors import CommError
  from wandb.errors.term import termlog
  from wandb.sdk.artifacts.artifact_file_cache import get_artifact_file_cache
  from wandb.sdk.artifacts.artifact_manifest_entry import ArtifactManifestEntry
  from wandb.sdk.artifacts.storage_handler import DEFAULT_MAX_OBJECTS, StorageHandler
  from wandb.sdk.lib.hashutil import ETag
  from wandb.sdk.lib.paths import FilePathStr, StrPath, URIStr
label_desc: Use image node_id 10 for calling the S3Handler obj's underlying member method code with example usage: obj._extra_from_obj(obj) and returns: extra