code: def get_args_index(target) -> int:
      
  
      code = target.__code__
  
      if not bool(code.co_flags & inspect.CO_VARARGS):
          return -1
  
      return code.co_argcount + code.co_kwonlyargcount
docs: Returns the index of the "*args" parameter if such a parameter exists in
      the function arguments or -1 otherwise.
  
      :param target:
          The target function for which the args index should be determined
      :return:
          The arguments index if it exists or -1 if not