Add type ignore unused-awaitable to places adding callbacks to a deffered

1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/util/caches/cached_call.py b/synapse/util/caches/cached_call.py

index e325f44da3..74b2bc4ebc 100644
--- a/synapse/util/caches/cached_call.py
+++ b/synapse/util/caches/cached_call.py
@@ -89,7 +89,7 @@ class CachedCall(Generic[TV]):
             def got_result(r: Union[TV, Failure]) -> None:
                 self._result = r
 
-            self._deferred.addBoth(got_result)
+            self._deferred.addBoth(got_result) # type: ignore[unused-awaitable]
 
         # TODO: consider cancellation semantics. Currently, if the call to get()
         #    is cancelled, the underlying call will continue (and any future calls