Downgrade version

whoseoyster · whoseoyster · commit b1dbd3f93280 · 2023-12-13T14:28:51.000-08:00
diff --git a/openlayer/version.py b/openlayer/version.py
@@ -22,4 +22,4 @@
          data=data,
       )
 """
-__version__ = "0.1.0a20"
+__version__ = "0.1.0a19"
