What's Changed
* Add file processing example by eyurtsev in https://github.com/langchain-ai/langserve/pull/113
* Add working with files to README.md by eyurtsev in https://github.com/langchain-ai/langserve/pull/114
* Add a custom user type by eyurtsev in https://github.com/langchain-ai/langserve/pull/115
* Widgets by eyurtsev in https://github.com/langchain-ai/langserve/pull/91
* Bump version by eyurtsev in https://github.com/langchain-ai/langserve/pull/116
**Full Changelog**: https://github.com/langchain-ai/langserve/compare/v0.0.17...v0.0.18