class_docstr: Base class for tracked locals and stack values
  
  VariableTracker instances are immutable and should be copied in
  order to change them.
class_docstr_tok: ["Base","class","for","tracked","locals","and","stack","values","VariableTracker","instances","are","immutable","and","should","be","copied","in","order","to","change","them","."]
docstr: Used by LazyVariableTracker to return the real VariableTracker if it already exists
docstr_tok: ["Used","by","LazyVariableTracker","to","return","the","real","VariableTracker","if","it","already","exists"]
code: def unwrap(self) -> "VariableTracker":
      """Used by LazyVariableTracker to return the real VariableTracker if it already exists"""
      return self
  
imports: import collections
  from enum import Enum
  from typing import Any, Callable, Dict, List
  from ..None import variables
  from ..current_scope_id import current_scope_id
  from ..exc import unimplemented
  from ..source import AttrSource, Source
  from ..utils import identity, istype
label_desc: Use image node_id 26 for calling the VariableTracker obj's underlying member method code with example usage: obj.unwrap() and returns: self