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docs: add tool_calls attribute link in tool calling documentation and indicate output is a list in code example (#31689)

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- Minor QOL improvements:
  - Add link to tool_calls api ref
- Show code example output as a list to more clearly indicate response
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Mason Daugherty 2025-06-23 11:31:26 -04:00 committed by GitHub
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docs/docs/concepts/tool_calling.mdx
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@ -114,12 +114,12 @@ result = llm_with_tools.invoke("What is 2 multiplied by 3?")
```
As before, the output `result` will be an `AIMessage`.
But, if the tool was called, `result` will have a `tool_calls` attribute.
But, if the tool was called, `result` will have a `tool_calls` [attribute](https://python.langchain.com/api_reference/core/messages/langchain_core.messages.ai.AIMessage.html#langchain_core.messages.ai.AIMessage.tool_calls).
This attribute includes everything needed to execute the tool, including the tool name and input arguments:
```
result.tool_calls
{'name': 'multiply', 'args': {'a': 2, 'b': 3}, 'id': 'xxx', 'type': 'tool_call'}
[{'name': 'multiply', 'args': {'a': 2, 'b': 3}, 'id': 'xxx', 'type': 'tool_call'}]
```
For more details on usage, see our [how-to guides](/docs/how_to/#tools)!