updated contents from Atlas repo

decorators/registration_abridged.py

@@ -0,0 +1,16 @@
+# BEGIN REGISTRATION_ABRIDGED
+registry = []
+
+def register(func):
+    print('running register(%s)' % func)
+    registry.append(func)
+    return func
+
+@register
+def f1():
+    print('running f1()')
+
+print('running main()')
+print('registry ->', registry)
+f1()
+# END REGISTRATION_ABRIDGED