code: def delete_file(self, path):
      os.unlink(path)
  
imports: import os
  import time
  from abc import ABC
  from pathlib import Path
  import hashlib
  import typing
  import pandas
  import walrus
  from mindsdb.utilities.config import Config
  from mindsdb.utilities.json_encoder import CustomJSONEncoder
  from mindsdb.interfaces.storage.fs import FileLock
  from mindsdb.utilities.context import context
label_desc: Use image node_id 9 for calling the FileCache obj's underlying member method code with example usage: obj.delete_file(path) without return types