langchain

cc173344 - core[minor]: add validation error handler to `BaseTool` (#14007)

core[minor]: add validation error handler to `BaseTool` (#14007) - **Description:** add a ValidationError handler as a field of [`BaseTool`](https://github.com/langchain-ai/langchain/blob/master/libs/core/langchain_core/tools.py#L101) and add unit tests for the code change. - **Issue:** #12721 #13662 - **Dependencies:** None - **Tag maintainer:** - **Twitter handle:** @hmdev3 - **NOTE:** - I'm wondering if the update of document is required. --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>