What's Changed
* Remove duplicate test case from test_arguments by hramezani in https://github.com/pydantic/pydantic-core/pull/490
* Remove duplicate code from field_after_validator_function doc by hramezani in https://github.com/pydantic/pydantic-core/pull/491
* Make validate_assignment a part of the Validator trait by adriangb in https://github.com/pydantic/pydantic-core/pull/478
* Uncomment some assertion by hramezani in https://github.com/pydantic/pydantic-core/pull/493
New Contributors
* hramezani made their first contribution in https://github.com/pydantic/pydantic-core/pull/490
**Full Changelog**: https://github.com/pydantic/pydantic-core/compare/v0.17.1...v0.18.0