nebraska: Add some TODO for what should be imported from nano_omaha_devserver.py

BUG=chromium:999047
TEST=None

Change-Id: Ic9c05b94d89495155867edcc369ff383943b6da9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/1951504
Tested-by: Amin Hassani <ahassani@chromium.org>
Commit-Queue: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Jae Hoon Kim <kimjae@chromium.org>
Reviewed-by: Andrew Lassalle <andrewlassalle@chromium.org>
diff --git a/nebraska/nebraska.py b/nebraska/nebraska.py
index 2d2eb0c..579fbc1 100755
--- a/nebraska/nebraska.py
+++ b/nebraska/nebraska.py
@@ -31,6 +31,16 @@
 from six.moves import urllib
 
 
+# TODO(crbug/999047): Add these functionalities from nano_omaha_devserver.py to
+# nebraska:
+#
+# - is_rollback: Passed to Nebraska (default False)
+# - failures_per_url: Passed to Nebraska (default 1)
+# - disable_backoff: Passed to Nebraska (default False)
+# - num_urls: Passed to Nebraska (default 2)
+# - eol_date: Passed to Nebraska (default None)
+
+
 class Error(Exception):
   """The base class for failures raised by Nebraska."""