Union,
)

from fastapi import routing
from fastapi.datastructures import Default, DefaultPlaceholder
from fastapi.exception_handlers import (
    http_exception_handler,
    request_validation_exception_handler,
    websocket_request_validation_exception_handler,
)
from fastapi.exceptions import RequestValidationError, WebSocketRequestValidationError
from fastapi.logger import logger
from fastapi.openapi.docs import (

                        response.headers.raw.extend(sub_response.headers.raw)
            if errors:
                validation_error = RequestValidationError(
                    _normalize_errors(errors), body=body
                )
                raise validation_error
        if response is None:
            raise FastAPIError(
                "No response object was returned. There's a high chance that the "