mirror of
https://github.com/hwchase17/langchain
synced 2024-11-10 01:10:59 +00:00
4eda647fdd
Previously, if this did not find a mypy cache then it wouldnt run this makes it always run adding mypy ignore comments with existing uncaught issues to unblock other prs --------- Co-authored-by: Erick Friis <erick@langchain.dev> Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>
62 lines
2.3 KiB
Python
62 lines
2.3 KiB
Python
from typing import Any, Dict, Optional, Type
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from langchain_core.callbacks import CallbackManagerForToolRun
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from langchain_core.language_models import BaseLanguageModel
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from langchain_core.pydantic_v1 import BaseModel, Field, root_validator
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from langchain_community.chat_models import ChatOpenAI
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from langchain_community.tools.amadeus.base import AmadeusBaseTool
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class ClosestAirportSchema(BaseModel):
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"""Schema for the AmadeusClosestAirport tool."""
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location: str = Field(
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description=(
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" The location for which you would like to find the nearest airport "
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" along with optional details such as country, state, region, or "
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" province, allowing for easy processing and identification of "
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" the closest airport. Examples of the format are the following:\n"
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" Cali, Colombia\n "
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" Lincoln, Nebraska, United States\n"
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" New York, United States\n"
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" Sydney, New South Wales, Australia\n"
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" Rome, Lazio, Italy\n"
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" Toronto, Ontario, Canada\n"
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)
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)
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class AmadeusClosestAirport(AmadeusBaseTool):
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"""Tool for finding the closest airport to a particular location."""
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name: str = "closest_airport"
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description: str = (
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"Use this tool to find the closest airport to a particular location."
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)
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args_schema: Type[ClosestAirportSchema] = ClosestAirportSchema
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llm: Optional[BaseLanguageModel] = Field(default=None)
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"""Tool's llm used for calculating the closest airport. Defaults to `ChatOpenAI`."""
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@root_validator(pre=True)
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def set_llm(cls, values: Dict[str, Any]) -> Dict[str, Any]:
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if not values.get("llm"):
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# For backward-compatibility
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values["llm"] = ChatOpenAI(temperature=0)
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return values
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def _run(
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self,
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location: str,
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run_manager: Optional[CallbackManagerForToolRun] = None,
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) -> str:
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content = (
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f" What is the nearest airport to {location}? Please respond with the "
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" airport's International Air Transport Association (IATA) Location "
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' Identifier in the following JSON format. JSON: "iataCode": "IATA '
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' Location Identifier" '
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)
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return self.llm.invoke(content) # type: ignore[union-attr]
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