Merge pull request #224 from dapper91/dev

- union validation error location fixed.
- potential memory leak fixed.
- python 3.13 support added.

Merge pull request #216 from dapper91/dev

- multiple pydantic model validators bug fixed.

Merge pull request #213 from dapper91/dev

- custom field xml serializer/validator support added.

Merge pull request #209 from dapper91/dev

- collection of tagged union deserialization bug fixed

Merge pull request #205 from dapper91/dev

- exclude_none and exclude_unset serialization flags support added.

Merge pull request #193 from dapper91/dev

- named tuple support added.

Merge pull request #190 from dapper91/dev

- dynamic model creation support added.

Merge pull request #187 from dapper91/dev

- mypy plugin dataclass_transform decorated model bug fixed. See #152 (comment).

Merge pull request #184 from dapper91/dev

- PEP-681 (Data Class Transforms) support added.
- pydantic 2.7 enum type support added.

Merge pull request #170 from dapper91/dev

- pydantic 2.6 incompatibility fixed.