Marcelo Díaz 094ce8f772 feat(gemini): Add custom TTL support for context caching (#9810) (#12541) ...

- Add ttl parameter to cache_control for Gemini models
- Support Google's TTL format (e.g., '3600s', '7200s')
- Implement robust TTL extraction and validation
- Extract TTL before system message transformation to handle all cases
- Add comprehensive test suite with 17 test cases in tests/test_litellm/
- Update documentation with TTL usage examples
- Maintain backward compatibility with existing cache_control usage

Fixes #9810

2025-07-14 22:30:54 -07:00

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feat(gemini): Add custom TTL support for context caching (#9810) (#12541)

2025-07-14 22:30:54 -07:00