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docs: Update how to docs for pydantic compatibility (#22983)

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Add missing imports in docs from langchain_core.tools  BaseTool

---------

Co-authored-by: Eugene Yurtsev <eugene@langchain.dev>
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Bella Be
2024-06-18 05:49:56 +04:00
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parent 3b7b276f6f
commit 7a0b36501f
1 changed files with 3 additions and 1 deletions
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docs/docs/how_to/pydantic_compatibility.md
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@@ -22,6 +22,7 @@ the case of inheritance and in the case of passing objects to LangChain.
```python ```python
from pydantic.v1 import root_validator, validator from pydantic.v1 import root_validator, validator
from langchain_core.tools import BaseTool
class CustomTool(BaseTool): # BaseTool is v1 code class CustomTool(BaseTool): # BaseTool is v1 code
x: int = Field(default=1) x: int = Field(default=1)
@@ -48,6 +49,7 @@ Mixing Pydantic v2 primitives with Pydantic v1 primitives can raise cryptic erro
```python ```python
from pydantic import Field, field_validator # pydantic v2 from pydantic import Field, field_validator # pydantic v2
from langchain_core.tools import BaseTool
class CustomTool(BaseTool): # BaseTool is v1 code class CustomTool(BaseTool): # BaseTool is v1 code
x: int = Field(default=1) x: int = Field(default=1)