1 files changed, 7 insertions, 1 deletions
diff --git a/synapse/handlers/receipts.py b/synapse/handlers/receipts.py
index 374e961e3b..4911a11535 100644
--- a/synapse/handlers/receipts.py
+++ b/synapse/handlers/receipts.py
@@ -241,12 +241,18 @@ class ReceiptEventSource(EventSource[int, JsonDict]):
     async def get_new_events_as(
         self, from_key: int, service: ApplicationService
     ) -> Tuple[List[JsonDict], int]:
-        """Returns a set of new receipt events that an appservice
+        """Returns a set of new read receipt events that an appservice
         may be interested in.
 
         Args:
             from_key: the stream position at which events should be fetched from
             service: The appservice which may be interested
+
+        Returns:
+            A two-tuple containing the following:
+                * A list of json dictionaries derived from read receipts that the
+                  appservice may be interested in.
+                * The current read receipt stream token.
         """
         from_key = int(from_key)
         to_key = self.get_current_key()