Added
* `schema(...).validator(...).existed` and `schema(...).validator(...).didnt_exist` instructions for simplistic manipulation of validators
* Automatic deletion of validators when the fields they validate get deleted
* `schema(...).field(...).didnt_have` for unsetting field attributes
* Improved support for `typing.Annotated` in schemas
* Full preservation of original abstract syntax trees for all field values and annotations
Fixed
* If the user wrote a wrong signature in a transformer decorated by `convert_request_to_next_version_for` or `convert_response_to_previous_version_for`, the text of the error suggested the wrong argument count and names