1 files changed, 2 insertions, 2 deletions
diff --git a/synapse/replication/tcp/streams.py b/synapse/replication/tcp/streams.py
index 967b459e0e..369d5f2428 100644
--- a/synapse/replication/tcp/streams.py
+++ b/synapse/replication/tcp/streams.py
@@ -98,8 +98,8 @@ ToDeviceStreamRow = namedtuple("ToDeviceStreamRow", (
     "entity",  # str
 ))
 FederationStreamRow = namedtuple("FederationStreamRow", (
-    "type",  # str
-    "data",  # dict
+    "type",  # str, the type of data as defined in the BaseFederationRows
+    "data",  # dict, serialization of a federation.send_queue.BaseFederationRow
 ))
 TagAccountDataStreamRow = namedtuple("TagAccountDataStreamRow", (
     "user_id",  # str