Any next read or write will be done from that position.

        To be awaitable, compatible with async, this is run in threadpool.
        """
        return await super().seek(offset)

    async def close(self) -> None:
        """
        Close the file.

        To be awaitable, compatible with async, this is run in threadpool.
        """
        return await super().close()

from pydantic import BaseModel
from pydantic.version import VERSION as PYDANTIC_VERSION
from starlette.datastructures import UploadFile
from typing_extensions import get_args, get_origin

# Copy from Pydantic v2, compatible with v1
if sys.version_info < (3, 10):
    WithArgsTypes: tuple[Any, ...] = (typing._GenericAlias, types.GenericAlias)  # type: ignore[attr-defined]
else:
    WithArgsTypes: tuple[Any, ...] = (

    You can also use it yourself, for example to convert objects before saving them
    in a database that supports only JSON.

    Read more about it in the
    [FastAPI docs for JSON Compatible Encoder](https://fastapi.tiangolo.com/tutorial/encoder/).
    """
    custom_encoder = custom_encoder or {}
    if custom_encoder:
        if type(obj) in custom_encoder:

@lru_cache
def get_cached_model_fields(model: type[BaseModel]) -> list[ModelField]:
    return get_model_fields(model)  # type: ignore[return-value]


# Duplicate of several schema functions from Pydantic v1 to make them compatible with
# Pydantic v2 and allow mixing the models

TypeModelOrEnum = Union[type["BaseModel"], type[Enum]]
TypeModelSet = set[TypeModelOrEnum]


def normalize_name(name: str) -> str:

        * `Path`
        * `Query`
        * ...as these are compatible with the WebSockets protocol (e.g. `Body` is not).
    * [Updated documentation for WebSockets](https://fastapi.tiangolo.com/advanced/websockets/).
    * PR [#178](https://github.com/tiangolo/fastapi/pull/178) by [@jekirl](https://github.com/jekirl).

* Upgrade the compatible version of Pydantic to `0.26.0`.