Source code for langchain_community.tools.gmail.base
"""Base class for Gmail tools."""
from __future__ import annotations
from typing import TYPE_CHECKING
from langchain_core.tools import BaseTool
from pydantic import Field
from langchain_community.tools.gmail.utils import build_resource_service
if TYPE_CHECKING:
# This is for linting and IDE typehints
from googleapiclient.discovery import Resource
else:
try:
# We do this so pydantic can resolve the types when instantiating
from googleapiclient.discovery import Resource
except ImportError:
pass
[docs]
class GmailBaseTool(BaseTool): # type: ignore[override]
"""Base class for Gmail tools."""
api_resource: Resource = Field(default_factory=build_resource_service)
[docs]
@classmethod
def from_api_resource(cls, api_resource: Resource) -> "GmailBaseTool":
"""Create a tool from an api resource.
Args:
api_resource: The api resource to use.
Returns:
A tool.
"""
return cls(service=api_resource) # type: ignore[call-arg]