code: def preload(self):
      self.tree.preload()
  
imports: from aim.ext.transport.message_utils import ResourceObject, pack_args
  from aim.ext.transport.remote_resource import RemoteResourceAutoClean
  from aim.storage.treeview import TreeView
  from aim.storage.treeutils import encode_tree
  from aim.storage.treearrayview import TreeArrayView
  from aim.storage.types import AimObject, AimObjectKey, AimObjectPath
  from typing import TYPE_CHECKING, Any, Iterator, Tuple, Union, List
label_desc: Use image node_id 3 for calling the SubtreeView obj's underlying member method code with example usage: obj.preload() without return types