DOC: The guide on how to "Log custom LLM traces" currently doesn't explain how to log tool calling and tool results.

[thiagotps]

Issue with current documentation:

The current documentation on Log custom LLM traces doesn't tell the format expected when the model makes a tool call or when the client side returns a tool result.

Idea or request for content:

An example of the format LangSmith expects to receive when the model calls a tool or when the client side needs to pass a tool result back to the model.

[hinthornw]

Noted - it should be the same format as what openai returns, but we should improve the doc there