code: def __getitem__(self, index):
      return self._preloads[index]
  
imports: from __future__ import annotations
  import filecmp
  import inspect
  import logging
  import os
  import shutil
  import sys
  from collections.abc import Iterable, Sequence
  from importlib import import_module
  from types import ModuleType
  from typing import TYPE_CHECKING, cast
  import click
  from dask.utils import tmpfile
  from distributed.core import Server
  from distributed.utils import import_file
label_desc: Use image node_id 2 for calling the PreloadManager obj's underlying member method code with example usage: obj.__getitem__(index) and returns: self