Update model_index.json

model_index.json

@@ -14,6 +14,6 @@
     "diffusers",
     "UNet1DModel"
   ],
-  "args": [],
-  "kwargs": {}
-}
+  "args": ["diffusers", "DDPMScheduler"],
+  "kwargs": ["diffusers", "DDPMScheduler"]
+ }