> ## Documentation Index > Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # AnthropicCacheControlDirectiveType ## Example Usage ```python theme={null} from openrouter.components import AnthropicCacheControlDirectiveType value: AnthropicCacheControlDirectiveType = "ephemeral" ``` ## Values * `"ephemeral"`