code: def add_callers(target, source):
      """Combine two caller lists in a single list."""
      new_callers = {}
      for func, caller in target.items():
          new_callers[func] = caller
      for func, caller in source.items():
          if func in new_callers:
              if isinstance(caller, tuple):
                  # format used by cProfile
                  new_callers[func] = tuple(
                      i + j for i, j in zip(caller, new_callers[func])
                  )
              else:
                  # format used by profile
                  new_callers[func] += caller
          else:
              new_callers[func] = caller
      return new_callers
  
imports: import sys
  import os
  import time
  import marshal
  import re
  from enum import StrEnum, _simple_enum
  from functools import cmp_to_key
  from dataclasses import dataclass
  from typing import Dict
label_desc: Use image node_id 5 for calling a global function with example usage: add_callers(target, source) and returns: new_callers