> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ag2.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

## Classes

<p class="overview-symbol"><a href="/docs/api-reference/autogen/oai/oai_models/chat_completion_message/Annotation"><code>class Annotation</code></a></p><p class="overview-symbol"><a href="/docs/api-reference/autogen/oai/oai_models/chat_completion_message/AnnotationURLCitation"><code>class AnnotationURLCitation</code></a></p><p class="overview-symbol"><a href="/docs/api-reference/autogen/oai/oai_models/chat_completion_message/ChatCompletionMessage"><code>class ChatCompletionMessage</code></a></p><p class="overview-symbol"><a href="/docs/api-reference/autogen/oai/oai_models/chat_completion_message/FunctionCall"><code>class FunctionCall</code></a></p>