Fix: Format _mixins.py with black

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

Author: fderuiter

imednet/endpoints/_mixins.py

@@ -259,9 +259,7 @@ class ListGetEndpoint(BaseEndpoint, ListGetEndpointMixin[T]):
 
     def _get_context(
         self, is_async: bool
-    ) -> tuple[
-        RequestorProtocol | AsyncRequestorProtocol, type[Paginator] | type[AsyncPaginator]
-    ]:
+    ) -> tuple[RequestorProtocol | AsyncRequestorProtocol, type[Paginator] | type[AsyncPaginator]]:
         if is_async:
             return self._require_async_client(), AsyncPaginator
         return self._client, Paginator