> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter-d02e98a0-mintlify-7021d5f4.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# ChatMessageContentItemCacheControl - Python SDK

> ChatMessageContentItemCacheControl method reference

<Warning>
  The Python SDK and docs are currently in beta.
  Report issues on [GitHub](https://github.com/OpenRouterTeam/python-sdk/issues).
</Warning>

## Fields

| Field  | Type                                               | Required             | Description |
| ------ | -------------------------------------------------- | -------------------- | ----------- |
| `type` | *Literal\["ephemeral"]*                            | :heavy\_check\_mark: | N/A         |
| `ttl`  | [Optional\[components.TTL\]](../components/ttl.md) | :heavy\_minus\_sign: | N/A         |