Issue #15535:  Fix pickling of named tuples.
diff --git a/Misc/ACKS b/Misc/ACKS
index 3b0630a..6a0d16f 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -811,6 +811,7 @@
 Jason Michalski
 Franck Michea
 Tom Middleton
+Thomas Miedema
 Stan Mihai
 Stefan Mihaila
 Aristotelis Mikropoulos