diff options
| -rw-r--r-- | synapse/util/async.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/synapse/util/async.py b/synapse/util/async.py index 8495de496a..1453faf0ef 100644 --- a/synapse/util/async.py +++ b/synapse/util/async.py @@ -89,6 +89,11 @@ class ObservableDeferred(object): deferred.addCallbacks(callback, errback) def observe(self): + """Observe the underlying deferred. + + Can return either a deferred if the underlying deferred is still pending + (or has failed), or the actual value. Callers may need to use maybeDeferred. + """ if not self._result: d = defer.Deferred() |