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-rw-r--r--include/rabbit_backing_queue_type_spec.hrl3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/rabbit_backing_queue_type_spec.hrl b/include/rabbit_backing_queue_type_spec.hrl
index f0a81aad4d..54118ba640 100644
--- a/include/rabbit_backing_queue_type_spec.hrl
+++ b/include/rabbit_backing_queue_type_spec.hrl
@@ -51,6 +51,7 @@
(('undefined' | 'infinity' | number()), state()) -> state()).
-spec(update_ram_duration/1 :: (state()) -> state()).
-spec(ram_duration/1 :: (state()) -> number()).
--spec(sync_callback/1 :: (state()) -> ('undefined' | {atom(), [any()]})).
+-spec(sync_callback/1 :: (state()) ->
+ ('undefined' | (fun ((A) -> {boolean(), A})))).
-spec(handle_pre_hibernate/1 :: (state()) -> state()).
-spec(status/1 :: (state()) -> [{atom(), any()}]).