Merge branch 'laplace-scheduler' of https://github.com/gapatron/diffusers into laplace-scheduler

Author: gapatron

docs/source/en/community_projects.md

@@ -83,4 +83,8 @@ Happy exploring, and thank you for being part of the Diffusers community!
     <td><a href="https://github.com/suzukimain/auto_diffusers"> Model Search </a></td>
     <td>Search models on Civitai and Hugging Face</td>
   </tr>
+  <tr style="border-top: 2px solid black">
+    <td><a href="https://github.com/beinsezii/skrample"> Skrample </a></td>
+    <td>Fully modular scheduler functions with 1st class diffusers integration.</td>
+  </tr>
 </table>

src/diffusers/schedulers/scheduling_ddpm.py

@@ -72,11 +72,11 @@ def betas_for_alpha_bar(
 
         def alpha_bar_fn(t):
             return math.cos((t + 0.008) / 1.008 * math.pi / 2) ** 2
-        
+
     elif alpha_transform_type == "laplace":
 
         def alpha_bar_fn(t):
-            lmb = - 0.5 * math.copysign(1, 0.5 - t) * math.log(1 - 2 * math.fabs(0.5 - t) + 1e-6)
+            lmb = -0.5 * math.copysign(1, 0.5 - t) * math.log(1 - 2 * math.fabs(0.5 - t) + 1e-6)
             snr = math.exp(lmb)
             return math.sqrt(snr / (1 + snr))