+# TODO specialized output filter by event/event_key, with some kind of automatic selection
+# e.g. if :default_pull_request exists, then it's automatically used if :event => "pull_request"
+# and :default is the current output filter.
+# The big question is what we should fallback to if the specific filter doesn't exist..
+#
+# If :custom exists, :default_pull_request exists and :custom_pull_request does not,
+# should we fall back to :custom or to :default_pull_request?
+
+