Update scheduler/scheduler_config.json

scheduler/scheduler_config.json

@@ -1,5 +1,5 @@
 {
-  "_class_name": "PNDMScheduler",
+  "_class_name": "HeunDiscreteScheduler",
   "_diffusers_version": "0.18.0.dev0",
   "beta_end": 0.012,
   "beta_schedule": "scaled_linear",
@@ -12,9 +12,9 @@
   "rescale_betas_zero_snr": false,
   "sample_max_value": 1.0,
   "set_alpha_to_one": false,
-  "skip_prk_steps": true,
   "steps_offset": 1,
   "thresholding": false,
   "timestep_spacing": "leading",
-  "trained_betas": null
-}
+  "trained_betas": null,
+  "use_karras_sigmas": false
+}