docstr: The function is used to read pyvmomi object from cache
docstr_tok: ["The","function","is","used","to","read","pyvmomi","object","from","cache"]
code: def get_obj_from_cache(self, vimtype, name, obj_id):
      """
      The function is used to read pyvmomi object from cache
      """
      object_type = get_object_type(vimtype)
      if name:
          object_cache = self.cached[KeyType.Name][object_type]
          obj = object_cache.get(name)
          if check_obj_validness(obj):
              if obj.name != name:
                  # example: If someone has changed the VM name on the vSphere side,
                  # then create another VM with the same name. Then this cache item
                  # will be dirty because it still points to the previous VM obj.
                  object_cache.pop(name)
                  object_cache[obj.name] = obj
                  return None
              return obj
          if obj:
              object_cache.pop(name)
      elif obj_id:
          object_cache = self.cached[KeyType.ObjectID][object_type]
          obj = object_cache.get(obj_id)
          if check_obj_validness(obj):
              return obj
          if obj:
              object_cache.pop(obj_id)
      return None
  
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 3 for calling the PyvmomiSdkProvider obj's underlying member method code with example usage: obj.get_obj_from_cache(vimtype, name, obj_id) and returns: None, obj, None, obj