class_docstr: A more understandable way to deal with sub-field like 'x.y'.
class_docstr_tok: ["A","more","understandable","way","to","deal","with","sub-field","like","'","x.y","'","."]
code: def node(self):
      # the node for attributes is added lazily, since most will just be method calls
      # which do not rely on the getitem call
      if self._node is None:
          self._node = self.tracer.create_proxy(
              "call_function", _orig_getattr, (self.root, self.attr), {}
          ).node
      return self._node
  
imports: from __future__ import annotations
  import dis
  import logging
  import inspect
  import operator
  from typing import List, Optional, Iterable, Any, Set, Union
  import torch
  from torch.fx._compatibility import compatibility
  from torch.fx.graph import magic_methods, reflectable_magic_methods
  from torch.fx.node import Node
  from torch.fx.proxy import Proxy
  from torch.overrides import is_tensor_method_or_property
  from .None import concrete_tracer
  from .utils import _orig_tuple, _orig_list, _orig_type, _orig_isinstance, _orig_getattr, _orig_range, _orig_dict, _orig_len, _orig_index, _orig_bool, _orig_slice, _orig_set, map_recursive
label_desc: Use image node_id 3 for calling the ConcreteAttrProxy obj's underlying member method code with example usage: obj.node() and returns: self