docstr: When the connection of pyvmomi idles for a while, it may no longer valid.
  The function is used to fix this issue
docstr_tok: ["When","the","connection","of","pyvmomi","idles","for","a","while",",","it","may","no","longer","valid",".","The","function","is","used","to","fix","this","issue"]
code: def ensure_connect(self):
      """
      When the connection of pyvmomi idles for a while, it may no longer valid.
      The function is used to fix this issue
      """
      try:
          _ = self.pyvmomi_sdk_client.RetrieveContent()
      except vim.fault.NotAuthenticated:
          self.pyvmomi_sdk_client = self.get_client()
          self.cached.clear()
      except Exception as e:
          self.cached.clear()
          raise RuntimeError(
              f"failed to ensure the connect, exception: {e}"
          )
  
imports: import atexit
  import logging
  import ssl
  import time
  from enum import Enum
  from pyVim.connect import Disconnect, SmartStubAdapter, VimSessionOrientedStub
  from pyVim.task import WaitForTask
  from pyVmomi import vim, vmodl
  from ray.autoscaler._private.vsphere.utils import Constants, is_ipv4, singleton_client
label_desc: Use image node_id 6 for calling the PyvmomiSdkProvider obj's underlying member method code with example usage: obj.ensure_connect() without return types