code: def lookup(cls, code, lineno, *key):
      if code not in cls.cache:
          cls.cache[code] = dict()
      key = tuple(key)
      if key not in cls.cache[code]:
          cls.cache[code][key] = cls.generate(code, lineno, *key)
      return cls.cache[code][key]
  
file_path: pytorch/torch/_dynamo/resume_execution.py
imports: import copy
  import dataclasses
  import sys
  import types
  from typing import Any, cast, Dict, List, Optional, Tuple
  from .bytecode_transformation import create_call_function, create_call_method, create_dup_top, create_instruction, create_jump_absolute, Instruction, InstructionExnTabEntry, transform_code_object, unique_id
  from .utils import ExactWeakKeyDictionary
label_desc: Use image node_id 1 for calling the ContinueExecutionCache obj's underlying member method code with example usage: obj.lookup(cls, code, lineno) and returns: cls