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core[patch]: ToolException docs/exception message (#17590)

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**Description:**
This PR adds a slightly more helpful message to a Tool Exception

```
# current state
langchain_core.tools.ToolException: Too many arguments to single-input tool

# proposed state
langchain_core.tools.ToolException: Too many arguments to single-input tool. Consider using a StructuredTool instead.
```
**Issue:** Somewhat discussed here 👉  #6197 
 **Dependencies:** None
**Twitter handle:** N/A

---------

Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>
This commit is contained in:
Kahlil Wehmeyer
2024-03-27 17:52:36 -04:00
committed by William Fu-Hinthorn
parent 33580cae7b
commit cf4ca8d2f2
1 changed files with 2 additions and 1 deletions
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3
libs/core/langchain_core/tools.py
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@@ -605,7 +605,8 @@ class Tool(BaseTool):
all_args = list(args) + list(kwargs.values())
if len(all_args) != 1:
raise ToolException(
f"Too many arguments to single-input tool {self.name}."
f"""Too many arguments to single-input tool {self.name}.
Consider using StructuredTool instead."""
f" Args: {all_args}"
)
return tuple(all_args), {}