docstr: Used for API Calls and Responses -> Utterance.
docstr_tok: ["Used","for","API","Calls","and","Responses","-",">","Utterance","."]
code: def api_dict_to_str(cls, apidict):
      """
      Used for API Calls and Responses -> Utterance.
      """
  
      return " ; ".join(
          f"{k} = {SerializationHelpers.maybe_inner_list_join(v)}"
          for k, v in sorted(apidict.items())
      )
  
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 5 for calling the SerializationHelpers obj's underlying member method code with example usage: obj.api_dict_to_str(cls, apidict) and returns: str