> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt. ## 4.2.3 **`(fix):`** The content type of file properties is now respected for multipart requests. For example, if you have a file property called `image` that has the content type `image/jpeg`, then it will be sent as: ```python "image": core.with_content_type(file=image, content_type="image/jpeg"), ``` ## 4.2.2 **`(fix):`** The content type of non-file properties is now respected for multipart requests. For example, if you have a type called `metadata` that has the content type `application/json`, then it will be sent as: ```python "metadata": (None, json.dumps(jsonable_encoder(metadata)), "application/json"), ```