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langchain/langchain/tools/gmail/get_thread.py

56 lines
1.7 KiB
Python

from typing import Dict, Optional, Type
from pydantic import BaseModel, Field
from langchain.callbacks.manager import (
AsyncCallbackManagerForToolRun,
CallbackManagerForToolRun,
)
from langchain.tools.gmail.base import GmailBaseTool
class GetThreadSchema(BaseModel):
# From https://support.google.com/mail/answer/7190?hl=en
thread_id: str = Field(
...,
description="The thread ID.",
)
class GmailGetThread(GmailBaseTool):
name: str = "get_gmail_thread"
description: str = (
"Use this tool to search for email messages."
" The input must be a valid Gmail query."
" The output is a JSON list of messages."
)
args_schema: Type[GetThreadSchema] = GetThreadSchema
def _run(
self,
thread_id: str,
run_manager: Optional[CallbackManagerForToolRun] = None,
) -> Dict:
"""Run the tool."""
query = self.api_resource.users().threads().get(userId="me", id=thread_id)
thread_data = query.execute()
if not isinstance(thread_data, dict):
raise ValueError("The output of the query must be a list.")
messages = thread_data["messages"]
thread_data["messages"] = []
keys_to_keep = ["id", "snippet", "snippet"]
# TODO: Parse body.
for message in messages:
thread_data["messages"].append(
{k: message[k] for k in keys_to_keep if k in message}
)
return thread_data
async def _arun(
self,
thread_id: str,
run_manager: Optional[AsyncCallbackManagerForToolRun] = None,
) -> Dict:
"""Run the tool."""
raise NotImplementedError