Extending BaseTool

[Kahl84]

I am trying to create a basetool that takes a CSV from google drive and convert to a dataframe. It is literally driving me crazy because I get an error at line 95 but there is no line 95. It must be a problem with Lanchain import but I can't figure out what

`import pandas as pd
import re
import requests
from io import StringIO
from langchain.tools import BaseTool
from langchain.agents import create_pandas_dataframe_agent

class CustomPandaCsvTool(BaseTool):
name = "CustomPandaCsvTool"
description = "Retrieve data from a CSV file in Google Drive and process it with Pandas"
return_direct = True

def __init__(self, llm):
    super().__init__()
    self.llm = llm

def _run(self, link: str) -> pd.DataFrame:
    if not self._is_valid_drive_link(link):
        return pd.DataFrame({
            'error': True,
            'message': "Invalid Google Drive link"
        }, index=[0])

    csv_data = self._download_csv_from_drive(link)
    if not self._is_valid_csv(csv_data):
        return pd.DataFrame({
            'error': True,
            'message': "Invalid CSV data"
        }, index=[0])

    df = pd.read_csv(StringIO(csv_data))
    return create_pandas_dataframe_agent(llm=self.llm, df=df, verbose=True)

@staticmethod
def _is_valid_drive_link(link: str) -> bool:
    return bool(re.match(r"https://drive\.google\.com/.*", link))

@staticmethod
def _download_csv_from_drive(gdrive_link: str) -> StringIO:
    file_id = re.findall(r"/d/([a-zA-Z0-9-_]+)", gdrive_link)
    if not file_id:
        return None

    file_id = file_id[0]
    download_url = f"https://drive.google.com/uc?id={file_id}&export=download"
    response = requests.get(download_url)
    csv_data = StringIO(response.text)
    return csv_data

@staticmethod
def _is_valid_csv(csv_data: StringIO) -> bool:
    try:
        pd.read_csv(csv_data)
        return True
    except pd.errors.ParserError:
        return False`

[SDcodehub]

can you paste full error trace? that will help to debug