code: def remove_checkpoint(self, path: _PATH) -> None:
      os.remove(path)
  
file_path: pytorch-lightning/tests/tests_pytorch/plugins/test_checkpoint_io_plugin.py
imports: import os
  from pathlib import Path
  from typing import Any, Dict, Optional
  from unittest.mock import MagicMock, Mock
  import torch
  from lightning.fabric.plugins import CheckpointIO, TorchCheckpointIO
  from lightning.fabric.utilities.types import _PATH
  from lightning.pytorch import Trainer
  from lightning.pytorch.callbacks import ModelCheckpoint
  from lightning.pytorch.demos.boring_classes import BoringModel
  from lightning.pytorch.plugins.io.async_plugin import AsyncCheckpointIO
  from lightning.pytorch.strategies import SingleDeviceStrategy
label_desc: Use image node_id 3 for calling the CustomCheckpointIO obj's underlying member method code with example usage: obj.remove_checkpoint(path) without return types