--- a/ZipArchive.st	Wed Dec 11 11:28:08 2019 +0100
+++ b/ZipArchive.st	Fri Dec 13 16:00:55 2019 +0100
@@ -5125,6 +5125,13 @@
 
     "Created: / 28-03-2011 / 19:19:26 / cg"
     "Modified: / 19-11-2012 / 12:02:36 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+!
+
+skippedInJSONEncoding
+    "return the inst-slots which are skipped when generating a jsonEncoding;
+     (to skip the ones with default or irrelevant values.)"
+
+    ^ #(next)
 ! !
 
 !ZipArchive::ZipMember methodsFor:'reading & writing'!