Update scheduler/scheduler_config.json

scheduler/scheduler_config.json

@@ -1,5 +1,5 @@
 {
-  "_class_name": "DDIMScheduler",
+  "_class_name": "HeunDiscreteScheduler",
   "_diffusers_version": "0.18.0.dev0",
   "beta_end": 0.012,
   "beta_schedule": "scaled_linear",
@@ -15,5 +15,6 @@
   "steps_offset": 1,
   "thresholding": false,
   "timestep_spacing": "leading",
-  "trained_betas": null
+  "trained_betas": null,
+  "use_karras_sigmas": false
 }