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DOC: type checker complain on args_schema type hint when inheriting from BaseTool (#30167)
Thank you for contributing to LangChain! - **Description:** update docs to suppress type checker complain on args_schema type hint when inheriting from BaseTool - **Issue:** #30142 - **Dependencies:** N/A - **Twitter handle:** N/A Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, eyurtsev, ccurme, vbarda, hwchase17.
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@ -492,7 +492,7 @@
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"cell_type": "code",
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"execution_count": 9,
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"execution_count": null,
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"id": "1dad8f8e",
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"metadata": {
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"execution": {
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@ -504,13 +504,14 @@
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},
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"outputs": [],
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"source": [
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"from typing import Optional, Type\n",
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"from typing import Optional\n",
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"\n",
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"from langchain_core.callbacks import (\n",
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" AsyncCallbackManagerForToolRun,\n",
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" CallbackManagerForToolRun,\n",
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")\n",
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"from langchain_core.tools import BaseTool\n",
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"from langchain_core.tools.base import ArgsSchema\n",
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"from pydantic import BaseModel, Field\n",
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"\n",
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"\n",
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@ -524,7 +525,7 @@
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"class CustomCalculatorTool(BaseTool):\n",
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" name: str = \"Calculator\"\n",
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" description: str = \"useful for when you need to answer questions about math\"\n",
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" args_schema: Type[BaseModel] = CalculatorInput\n",
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" args_schema: Optional[ArgsSchema] = CalculatorInput\n",
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" return_direct: bool = True\n",
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"\n",
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" def _run(\n",
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