code: def maybe_inner_list_join(cls, values):
      if type(values) is dict:
          return str(values)
      if (
          isinstance(values, str)
          or isinstance(values, int)
          or isinstance(values, float)
      ):
          return values
      elif isinstance(values, Iterable):
          return SerializationHelpers.inner_list_join(values)
      else:
          raise RuntimeError(
              f"invalid type of argument for maybe_inner_list_join: {values}; type {type(values)}"
          )
  
imports: from enum import Enum
  from typing import List, Dict
  from dataclasses import dataclass, field
  from collections.abc import Iterable
  from parlai.utils.misc import warn_once
label_desc: Use image node_id 4 for calling the SerializationHelpers obj's underlying member method code with example usage: obj.maybe_inner_list_join(cls, values) and returns: str, values, SerializationHelpers