Adding the missing super() for open_ai_client

Signed-off-by: Sunish Sheth <[email protected]>

Author: sunishsheth2009

databricks/sdk/mixins/open_ai_client.py

@@ -82,10 +82,10 @@ def http_request(self,
         :returns: :class:`ExternalFunctionResponse`
         """
 
-        return super.http_request(connection_name=conn,
-                                  method=method,
-                                  path=path,
-                                  headers=js.dumps(headers),
-                                  json=js.dumps(json),
-                                  params=js.dumps(params),
-                                  )
+        return super().http_request(connection_name=conn,
+                                    method=method,
+                                    path=path,
+                                    headers=js.dumps(headers) if headers is not None else None,
+                                    json=js.dumps(json) if json is not None else None,
+                                    params=js.dumps(params) if params is not None else None,
+                                    )