declare namespace CHAT {

  interface DIALOG_PARAMS {
    'name': string,
    'icon': string,
    'language': string,
    'prompt_config': {
      'empty_response': string,
      'prologue': string,
      'quote': boolean,
      'keyword':boolean,
      'tts':boolean,
      'system':string
      'refine_multiturn':boolean,
      'use_kg':boolean,
      'reasoning':boolean,
      'parameters': {'key':string, 'optional':boolean }[]
      'llm_id':string
      'llm_setting': {
        'temperature': number,
        'top_p': number
        'presence_penalty':number
        'frequency_penalty':number
      },
      'similarity_threshold': number
      'vector_similarity_weight': number
      'top_n': number
    }
  }

  interface DIALOG {
    id: string
    name: string
    description: string
  }

  interface DELTA {
    'content': string,
    'role': string,
    'function_call': null,
    'tool_calls': null
}

  interface INFO {
    'id': string,
    'choices': {
      'delta': DELTA,
      'finish_reason': null,
      'index': number,
      'logprobs': null
    }[],
    'created': string,
    'model': 'model',
    'object': string,
    'system_fingerprint': string,
    'usage': null
  }

  interface CONVERSATION_PARAMS {
    'dialog_id'?: string,
    'name': string,
    'is_new': boolean,
    'conversation_id': string,
    'message'?: {'role': string, 'content': string}[]
  }

  interface CONVERSATION {
    'dialog_id'?: string,
    'name': string,
    'create_time': number
    'is_new': boolean,
    'conversation_id': string,
    'message'?: {'role': string, 'content': string}[]
  }
}