diff -r ce9c83f7ec14 -r 8874aff14cc9 CollectionUtils.h
--- a/CollectionUtils.h	Sun Jul 13 10:45:42 2008 -0700
+++ b/CollectionUtils.h	Sun May 10 18:57:43 2009 -0700
@@ -47,6 +47,10 @@
 void setString( NSString **var, NSString *value );
 BOOL ifSetString( NSString **var, NSString *value );
 
+BOOL kvSetSet( id owner, NSString *property, NSMutableSet *set, NSSet *newSet );
+BOOL kvAddToSet( id owner, NSString *property, NSMutableSet *set, id objToAdd );
+BOOL kvRemoveFromSet( id owner, NSString *property, NSMutableSet *set, id objToRemove );
+
 
 #define $true   ((NSNumber*)kCFBooleanTrue)
 #define $false  ((NSNumber*)kCFBooleanFalse)