exclude_unset=exclude_unset,
            exclude_defaults=exclude_defaults,
            exclude_none=exclude_none,
        )

    def __hash__(self) -> int:
        # Each ModelField is unique for our purposes, to allow making a dict from
        # ModelField to its JSON Schema.
        return id(self)


def _has_computed_fields(field: ModelField) -> bool:

### Refactors

* ♻️ Refactor internal `check_file_field()`, rename to `ensure_multipart_is_installed()` to clarify its purpose. PR [#12106](https://github.com/fastapi/fastapi/pull/12106) by [@tiangolo](https://github.com/tiangolo).