code: def __getitem__(self, key):
      if key in self:
          with timer("read %s" % key):
              with open(self._path(key), "rb") as f:
                  return pickle.load(f)
      return None
  
imports: import os
  import gc
  import pickle
  import lore
  from lore.stores.base import Base
  from lore.util import timer
  from lore.env import require
  import pandas
  from datetime import datetime
label_desc: Use image node_id 2 for calling the Disk obj's underlying member method code with example usage: obj.__getitem__(key) and returns: None, pickle