* 📌 Relax Swagger UI version pin. PR [#2089](https://github.com/tiangolo/fastapi/pull/2089) by [@jmriebold](https://github.com/jmriebold).
* 🐛 Fix bug overriding custom HTTPException and RequestValidationError from exception_handlers. PR [#1924](https://github.com/tiangolo/fastapi/pull/1924) by [@uriyyo](https://github.com/uriyyo).

from fastapi.utils import (
    create_cloned_field,
    create_model_field,
    generate_unique_id,
    get_value_or_default,
    is_body_allowed_for_status_code,
)
from starlette import routing
from starlette._exception_handler import wrap_app_handling_exceptions
from starlette._utils import is_async_callable
from starlette.concurrency import run_in_threadpool
from starlette.exceptions import HTTPException
from starlette.requests import Request