feat(anthropic): add support for prompt caching #2669
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Implements Anthropic's prompt caching feature to improve token efficiency. - Adds cache control support in AnthropicApi and AnthropicChatModel - Creates AnthropicCacheType enum with EPHEMERAL cache type - Extends AbstractMessage and UserMessage to support cache parameters - Updates Usage tracking to include cache-related token metrics - Adds integration test to verify prompt caching functionality This implementation follows Anthropic's prompt caching API (beta-2024-07-31) which allows for more efficient token usage by caching frequently used prompts.
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NOTE: This is a rebased version of the original #1413 PR by @Claudio-code.
@Claudio-code is this the original author for this PR:
Implements Anthropic's prompt caching feature to improve token efficiency.
This implementation follows Anthropic's prompt caching API (beta-2024-07-31) which allows for more efficient token usage by caching frequently used prompts.