code: def check_etag_obj_path(
      self,
      url: URIStr,
      etag: ETag,
      size: int,
  ) -> Tuple[FilePathStr, bool, "Opener"]:
      hexhash = hashlib.sha256(
          hashlib.sha256(url.encode("utf-8")).digest()
          + hashlib.sha256(etag.encode("utf-8")).digest()
      ).hexdigest()
      path = self._obj_dir / "etag" / hexhash[:2] / hexhash[2:]
      return self._check_or_create(path, size)
  
imports: import contextlib
  import errno
  import hashlib
  import os
  import shutil
  import subprocess
  import sys
  from pathlib import Path
  from tempfile import NamedTemporaryFile
  from typing import IO, TYPE_CHECKING, ContextManager, Generator, Optional, Tuple
  import wandb
  from wandb import env, util
  from wandb.errors import term
  from wandb.sdk.lib.filesystem import files_in
  from wandb.sdk.lib.hashutil import B64MD5, ETag, b64_to_hex_id
  from wandb.sdk.lib.paths import FilePathStr, StrPath, URIStr
label_desc: Use image node_id 3 for calling the ArtifactFileCache obj's underlying member method code with example usage: obj.check_etag_obj_path(url, etag, size) and returns: self