Close #18690: register memoryview with Sequence ABC
diff --git a/Lib/collections/abc.py b/Lib/collections/abc.py
index a8681ea..d19e592 100644
--- a/Lib/collections/abc.py
+++ b/Lib/collections/abc.py
@@ -643,6 +643,7 @@
 Sequence.register(tuple)
 Sequence.register(str)
 Sequence.register(range)
+Sequence.register(memoryview)
 
 
 class ByteString(Sequence):