codekingpro/portable-devtools

1from typing import List2 3from langchain_core.messages import (4    AIMessage,5    BaseMessage,6    ChatMessage,7    HumanMessage,8    SystemMessage,9)10 11 12def _convert_one_message_to_text_llama(message: BaseMessage) -> str:13    if isinstance(message, ChatMessage):14        message_text = f"\n\n{message.role.capitalize()}: {message.content}"15    elif isinstance(message, HumanMessage):16        message_text = f"[INST] {message.content} [/INST]"17    elif isinstance(message, AIMessage):18        message_text = f"{message.content}"19    elif isinstance(message, SystemMessage):20        message_text = f"<<SYS>> {message.content} <</SYS>>"21    else:22        raise ValueError(f"Got unknown type {message}")23    return message_text24 25 26def convert_messages_to_prompt_llama(messages: List[BaseMessage]) -> str:27    """Convert a list of messages to a prompt for llama."""28 29    return "\n".join(30        [_convert_one_message_to_text_llama(message) for message in messages]31    )32