diff -r 186c78af057e -r a9f1d97402c8 ChangeSet.st
--- a/ChangeSet.st	Wed Feb 19 20:07:29 2020 +0100
+++ b/ChangeSet.st	Wed Feb 19 20:11:43 2020 +0100
@@ -4900,10 +4900,10 @@
     "Modified: / 12-10-2006 / 22:06:55 / cg"
 !
 
-changed:something
+changed:aChangeSet
     "set the set of changed methods"
 
-    changed := something.
+    changed := aChangeSet.
 
     "Modified: / 12-10-2006 / 22:06:03 / cg"
 !
@@ -4912,7 +4912,7 @@
     self changed:changedArg onlyInReceiver:onlyInReceiverArg onlyInArg:onlyInArgArg same:nil
 !
 
-changed:changedArg onlyInReceiver:onlyInReceiverArg onlyInArg:onlyInArgArg same: sameArg
+changed:changedArg onlyInReceiver:onlyInReceiverArg onlyInArg:onlyInArgArg same:sameArg
     "set instance variables (automatically generated)"
 
     changed := changedArg.
@@ -4938,8 +4938,11 @@
     "Modified: / 12-10-2006 / 22:07:02 / cg"
 !
 
-onlyInArg:something
-    onlyInArg := something.
+onlyInArg:aChangeSet
+    "set the set of methods which are only present in the argument of the diffset-generation operation 
+     (i.e. the 2nd or right changeSet)"
+
+    onlyInArg := aChangeSet.
 !
 
 onlyInReceiver
@@ -4950,16 +4953,23 @@
     "Modified: / 12-10-2006 / 22:07:12 / cg"
 !
 
-onlyInReceiver:something
-    onlyInReceiver := something.
+onlyInReceiver:aChangeSet
+    "set the set of methods which are only present in the receiver of the diffset-generation operation 
+     (i.e. the 1st or left changeSet)"
+
+    onlyInReceiver := aChangeSet.
 !
 
 same
+    "return the set of methods which are the same"
+
     ^ same
 !
 
-same:something
-    same := something.
+same:aChangeSet
+    "set the set of methods which are the same"
+
+    same := aChangeSet.
 ! !
 
 !ChangeSet::DiffSet methodsFor:'merging'!