add dummy object for pytorch dpmsolver

Author: LuChengTHU

src/diffusers/utils/dummy_torch_and_accelerate_objects.py

@@ -302,6 +302,21 @@ def from_pretrained(cls, *args, **kwargs):
         requires_backends(cls, ["torch", "accelerate"])
 
 
+class DPMSolverDiscreteScheduler(metaclass=DummyObject):
+    _backends = ["torch", "accelerate"]
+
+    def __init__(self, *args, **kwargs):
+        requires_backends(self, ["torch", "accelerate"])
+
+    @classmethod
+    def from_config(cls, *args, **kwargs):
+        requires_backends(cls, ["torch", "accelerate"])
+
+    @classmethod
+    def from_pretrained(cls, *args, **kwargs):
+        requires_backends(cls, ["torch", "accelerate"])
+
+
 class EulerAncestralDiscreteScheduler(metaclass=DummyObject):
     _backends = ["torch", "accelerate"]