code: def read_storage(
      self, h: str, *, device=None
  ) -> torch.UntypedStorage:
      if device is not None:
          device = torch.device(device)
      ws = (
          self.storage_cache[device].get(h)
          if self.storage_cache is not None
          else None
      )
      s: Optional[torch.UntypedStorage]
      if ws is not None:
          s = torch.UntypedStorage._new_with_weak_ptr(ws.cdata)
          if s is not None:
              return s
      s = torch.load(
          os.path.join(self.loc, "storages", h),
          weights_only=True,
          map_location=device,
      )._untyped_storage
      assert s is not None
      if self.storage_cache is not None:
          self.storage_cache[device][h] = StorageWeakRef(s)
      return s
  
imports: import ctypes
  import functools
  import hashlib
  import os.path
  import struct
  from collections import defaultdict
  from typing import Dict, Optional, Set
  import torch
  import torch._prims
  import torch._utils
  import torch.nn.functional
  from torch._C import default_generator
  from torch.multiprocessing.reductions import StorageWeakRef
label_desc: Use image node_id 2 for calling the ContentStoreReader obj's underlying member method code with example usage: obj.read_storage(h) and returns: s, s