code: def to_tuple(self):
      return (self.size, self.dtype, self.device, self.bufid)
  
imports: from __future__ import annotations
  from typing import Callable, List, Tuple, Dict, cast, Union, Optional, TypeVar, Generic
  import functools, itertools, operator
  from tinygrad.nn.state import get_parameters
  from tinygrad.dtype import DType
  from tinygrad.helpers import DEBUG, merge_dicts, getenv, all_int, Context, GRAPH, flatten
  from tinygrad.device import Compiled, JITRunner, CompiledASTRunner, Buffer
  from tinygrad.tensor import Tensor
  from tinygrad.lazy import LazyBuffer
  from tinygrad.features.multi import MultiLazyBuffer
  from tinygrad.shape.shapetracker import ShapeTracker
  from tinygrad.shape.symbolic import Variable, NumNode, Node
  from weakref import ref, WeakKeyDictionary
  from dataclasses import dataclass
label_desc: Use image node_id 2 for calling the PlaceHolder obj's underlying member method code with example usage: obj.to_tuple() and returns: self,  self,  self,  self