Unsafe overridden ToString on ChatCompletion

[isaacabraham]

This override crashes as soon as there is no content returned e.g. in the case of a FunctionTool response.

[sunnynagavo]

may be change it to this ?

/// <summary>Returns the text of the first element in the Content collection, or an empty string if the collection is null or empty.</summary>
public override string ToString() => Content != null && Content.Count > 0 ? Content[0].Text : string.Empty;

[joseharriaga]

Thank you for reaching out, @isaacabraham ! Based on how the chat completions API has evolved over the past few months and given that the Content property is not always present depending on the circumstances, we have decided to remove the ToString() override for now because it is a common cause of confusion. Instead, our current recommendation is for users to handle the ChatCompletion's Content property themselves based on their specific needs (in other words, based on if they expect function tool calls, refusals, etc.).

[isaacabraham]

@joseharriaga I would agree with this. Overriding ToString() is a somewhat opaque thing to do - especially if it's encapsulating some logic or varying data. Having a specific, well-known property sounds a safer and more reasonable thing to do.

ToString() should never crash - it's called implicitly in many areas of .NET applications.