code: def check_handle_open(self, key):
      if key in self.handles:
          return
      handle_path = self.get_path(key)
      py_io.create_containing_folder(handle_path)
      self.handles[key] = open(handle_path, self.write_mode)
  
imports: import os
  import time
  import torch
  import traceback
  from contextlib import contextmanager
  import jiant.utils.python.io
  import jiant.utils.python.filesystem
label_desc: Use image node_id 6 for calling the ZLogger obj's underlying member method code with example usage: obj.check_handle_open(key) without return types