Index: doc/example-scripts/rosetta-abstract-type.tcl
===================================================================
diff -u -rf858f142f5fab4f88996b3eb709c3afa55114be9 -r24cb8f4bffd49c9375c1c64aa0610933b62511bb
--- doc/example-scripts/rosetta-abstract-type.tcl	(.../rosetta-abstract-type.tcl)	(revision f858f142f5fab4f88996b3eb709c3afa55114be9)
+++ doc/example-scripts/rosetta-abstract-type.tcl	(.../rosetta-abstract-type.tcl)	(revision 24cb8f4bffd49c9375c1c64aa0610933b62511bb)
@@ -24,10 +24,13 @@
 # Define a concrete queue (named ListQueue) based 
 # on the Abstract Queue
 nx::Class create ListQueue -superclass AbstractQueue {
+    
   :variable list {}
+    
   :public method enqueue {item} {
     lappend :list $item
   }
+  
   :public method dequeue {} {
     set item [lindex ${:list} 0]
     set :list [lrange ${:list} 1 end]
@@ -46,4 +49,4 @@
 # Enqueue and dequeue items
 ? {$q enqueue 100} 100
 ? {$q enqueue 101} "100 101"
-? {$q dequeue} 100
\ No newline at end of file
+? {$q dequeue} 100