Support for MSC2285 (hidden read receipts)

tests/handlers/test_receipts.py

@@ -20,6 +20,10 @@
 
 from tests import unittest
 
+# In the first param of _test_filters_hidden we use "hidden" instead of
+# ReadReceiptEventFields.MSC2285_HIDDEN. We do this because we're mocking
+# the data from the database which doesn't use the prefix
+
 
 class ReceiptsTestCase(unittest.HomeserverTestCase):
     def prepare(self, reactor, clock, hs):
@@ -282,12 +286,6 @@ def test_filters_out_receipt_event_with_only_hidden_receipt_and_ignores_rest(sel
             ],
         )
 
-    """
-    In the first param of _test_filters_hidden we use "hidden" instead of
-    ReadReceiptEventFields.MSC2285_HIDDEN. We do this because we're mocking
-    the data from the database which doesn't use the prefix
-    """
-
     def _test_filters_hidden(
         self, events: List[JsonDict], expected_output: List[JsonDict]
     ):