1 files changed, 2 insertions, 0 deletions
diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py
index ecb6dbd770..3249060bcf 100644
--- a/synapse/federation/federation_client.py
+++ b/synapse/federation/federation_client.py
@@ -190,6 +190,8 @@ class FederationClient(FederationBase):
             outlier (bool): Indicates whether the PDU is an `outlier`, i.e. if
                 it's from an arbitary point in the context as opposed to part
                 of the current block of PDUs. Defaults to `False`
+            timeout (int): How long to try (in ms) each destination for before
+                moving to the next destination. None indicates no timeout.
 
         Returns:
             Deferred: Results in the requested PDU.