FastApi generator does not work with structured inputs

[aryehklein]

CLI Version from fern.config.json

0.39.19

Generator & Version from generators.yml

fernapi/fern-fastapi-server@"1.6.0"

Minimal API Specification

TestUpload:
  docs: Test upload
  method: POST
  path: "/test-upload"
  request:
    name: UploadDocumentRequest
    body:
      properties:
        file: file
        body: SystemLocator
  response: string
  errors:
    - errors.BadRequestError
    - errors.NotAuthorizedError
    - errors.InternalServerError

types:
SystemLocator:
key: value

Actual Generated Code

@abc.abstractmethod
async def test_upload(
    self, *, file: fastapi.UploadFile, body: SystemLocator, auth: ApiAuth
) -> str:
    """
    Test upload
    """
    ...

Expected Generated Code

The body is wrong - in a multiform upload FastApi expects a Form field. Having it as is causes a 422 in all cases. When I change my method to

    async def test_upload(self, *, file: UploadFile, body: typing.Optional[typing.Any], auth: ApiAuth) -> None:
 -> str:
        """
        Test upload
        """

The method call works as it bypasses fastapi validation. I think that the abstract method should leverage the Form FastApi integration so this works out of the box

Environment Details (Optional)

No response