Source code for langchain_community.tools.connery.tool
import asyncio
from functools import partial
from typing import Any, Dict, List, Optional, Type
from langchain_core.callbacks.manager import (
AsyncCallbackManagerForToolRun,
CallbackManagerForToolRun,
)
from langchain_core.pydantic_v1 import BaseModel, Field, create_model, root_validator
from langchain_core.tools import BaseTool
from langchain_community.tools.connery.models import Action, Parameter
[docs]class ConneryAction(BaseTool):
"""康纳动作工具。"""
name: str
description: str
args_schema: Type[BaseModel]
action: Action
connery_service: Any
def _run(
self,
run_manager: Optional[CallbackManagerForToolRun] = None,
**kwargs: Dict[str, str],
) -> Dict[str, str]:
"""运行Connery Action并提供输入。
参数:
kwargs(Dict[str, str]):操作所需的输入字典。
返回:
Dict[str, str]:操作的输出。
"""
return self.connery_service.run_action(self.action.id, kwargs)
async def _arun(
self,
run_manager: Optional[AsyncCallbackManagerForToolRun] = None,
**kwargs: Dict[str, str],
) -> Dict[str, str]:
"""使用提供的输入异步运行Connery操作。
参数:
kwargs(Dict[str,str]):操作所需的输入字典。
返回:
Dict[str,str]:操作的输出。
"""
func = partial(self._run, **kwargs)
return await asyncio.get_event_loop().run_in_executor(None, func)
[docs] def get_schema_json(self) -> str:
"""返回Connery Action Tool模式的JSON表示。
这对于调试很有用。
返回:
str:Connery Action Tool模式的JSON表示。
"""
return self.args_schema.schema_json(indent=2)
@root_validator()
def validate_attributes(cls, values: dict) -> dict:
"""验证 ConneryAction 类的属性。
参数:
values(dict):要验证的参数。
返回:
dict:验证后的参数。
"""
# Import ConneryService here and check if it is an instance
# of ConneryService to avoid circular imports
from .service import ConneryService
if not isinstance(values.get("connery_service"), ConneryService):
raise ValueError(
"The attribute 'connery_service' must be an instance of ConneryService."
)
if not values.get("name"):
raise ValueError("The attribute 'name' must be set.")
if not values.get("description"):
raise ValueError("The attribute 'description' must be set.")
if not values.get("args_schema"):
raise ValueError("The attribute 'args_schema' must be set.")
if not values.get("action"):
raise ValueError("The attribute 'action' must be set.")
if not values.get("connery_service"):
raise ValueError("The attribute 'connery_service' must be set.")
return values
[docs] @classmethod
def create_instance(cls, action: Action, connery_service: Any) -> "ConneryAction":
"""创建一个Connery操作工具,从一个Connery操作中创建。
参数:
action(Action):要包装在Connery操作工具中的Connery操作。
connery_service(ConneryService):Connery服务,用于运行Connery操作。我们在这里使用Any来避免循环导入。
返回:
ConneryAction:Connery操作工具。
"""
# Import ConneryService here and check if it is an instance
# of ConneryService to avoid circular imports
from .service import ConneryService
if not isinstance(connery_service, ConneryService):
raise ValueError(
"The connery_service must be an instance of ConneryService."
)
input_schema = cls._create_input_schema(action.inputParameters)
description = action.title + (
": " + action.description if action.description else ""
)
instance = cls(
name=action.id,
description=description,
args_schema=input_schema,
action=action,
connery_service=connery_service,
)
return instance
@classmethod
def _create_input_schema(cls, inputParameters: List[Parameter]) -> Type[BaseModel]:
"""根据Connery Action的输入参数,为Connery Action工具创建一个输入模式。
参数:
inputParameters:Connery Action的输入参数列表。
返回:
Type[BaseModel]:Connery Action工具的输入模式。
"""
dynamic_input_fields: Dict[str, Any] = {}
for param in inputParameters:
default = ... if param.validation and param.validation.required else None
title = param.title
description = param.title + (
": " + param.description if param.description else ""
)
type = param.type
dynamic_input_fields[param.key] = (
str,
Field(default, title=title, description=description, type=type),
)
InputModel = create_model("InputSchema", **dynamic_input_fields)
return InputModel