langchain/libs/community/langchain_community/tools/google_lens/tool.py

"""Tool for the Google Lens"""

from typing import Optional

from langchain_core.callbacks import CallbackManagerForToolRun
from langchain_core.tools import BaseTool

from langchain_community.utilities.google_lens import GoogleLensAPIWrapper


class GoogleLensQueryRun(BaseTool):
    """Tool that queries the Google Lens API."""

    name: str = "google_lens"
    description: str = (
        "A wrapper around Google Lens Search. "
        "Useful for when you need to get information related"
        "to an image from Google Lens"
        "Input should be a url to an image."
    )
    api_wrapper: GoogleLensAPIWrapper

    def _run(
        self,
        query: str,
        run_manager: Optional[CallbackManagerForToolRun] = None,
    ) -> str:
        """Use the tool."""
        return self.api_wrapper.run(query)