code: def __call__(self, *args, **kwargs):
      return self.tracer.create_proxy(
          "call_method", self.attr, (self.root,) + args, kwargs
      )
  
imports: import torch
  import torch.fx
  import warnings
  import functools
  import builtins
  from typing import Any, Callable, Dict, Optional, Union
label_desc: Use image node_id 3 for calling the MetaAttribute obj's underlying member method code with example usage: obj.__call__() and returns: self