chore(internal): codegen related update (#2457)

Author: stainless-app[bot]

README.md

@@ -142,6 +142,25 @@ for account in first_page.result:
 # Remove `await` for non-async usage.
 ```
 
+## File uploads
+
+Request parameters that correspond to file uploads can be passed as `bytes`, a [`PathLike`](https://docs.python.org/3/library/os.html#os.PathLike) instance or a tuple of `(filename, contents, media type)`.
+
+```python
+from pathlib import Path
+from cloudflare import Cloudflare
+
+client = Cloudflare()
+
+client.api_gateway.user_schemas.create(
+    zone_id="023e105f4ecef8ad9ca31a8372d0c353",
+    file=Path("/path/to/file"),
+    kind="openapi_v3",
+)
+```
+
+The async client uses the exact same interface. If you pass a [`PathLike`](https://docs.python.org/3/library/os.html#os.PathLike) instance, the file contents will be read asynchronously automatically.
+
 ## Handling errors
 
 When the library is unable to connect to the API (for example, due to network connection problems or a timeout), a subclass of `cloudflare.APIConnectionError` is raised.

src/cloudflare/_files.py

@@ -34,7 +34,7 @@ def assert_is_file_content(obj: object, *, key: str | None = None) -> None:
     if not is_file_content(obj):
         prefix = f"Expected entry at `{key}`" if key is not None else f"Expected file input `{obj!r}`"
         raise RuntimeError(
-            f"{prefix} to be bytes, an io.IOBase instance, PathLike or a tuple but received {type(obj)} instead."
+            f"{prefix} to be bytes, an io.IOBase instance, PathLike or a tuple but received {type(obj)} instead. See https://github.com/cloudflare/cloudflare-python/tree/main#file-uploads"
         ) from None