> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter-d02e98a0-speakeasy-sdk-regen-1790763208.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Message

## Fields

| Field | Type | Required | Description |
| - | - | - | - |
| `annotations` | List\[[components.Annotation](../components/annotation.mdx)] | :heavy\_minus\_sign: | N/A |
| `content` | *Nullable\[str]* | :heavy\_check\_mark: | N/A |
| `images` | List\[[components.Image](../components/image.mdx)] | :heavy\_minus\_sign: | N/A |
| `reasoning` | *OptionalNullable\[str]* | :heavy\_minus\_sign: | N/A |
| `reasoning_details` | List\[[Nullable\[components.ReasoningDetail\]](../components/reasoningdetail.mdx)] | :heavy\_minus\_sign: | N/A |
| `refusal` | *Nullable\[str]* | :heavy\_check\_mark: | N/A |
| `role` | [components.ChoiceRole](../components/choicerole.mdx) | :heavy\_check\_mark: | N/A |
| `tool_calls` | List\[[components.ToolCall](../components/toolcall.mdx)] | :heavy\_minus\_sign: | N/A |