In ValueObjAt.rakudoc, change from dd to say and fix output (#4693)

* change from dd to say, fix output

* append .raku to say argument 

With this the output is as it needs to be to illustrate the point in question.

Author: schultzdavid

doc/Type/ValueObjAt.rakudoc

@@ -10,11 +10,11 @@ A subclass of L<C<ObjAt>|/type/ObjAt> that should be used to indicate that a cla
 produces objects that are value types - in other words, that are immutable after
 they have been initialized.
 
-    my %h = a => 42;   # mutable Hash
-    dd %h.WHICH;       # OUTPUT: «ObjAt.new("Hash|1402...888")␤»
+    my %h = a => 42;    # mutable Hash
+    say %h.WHICH.raku;  # OUTPUT: «ObjAt.new("Hash|2972851925856")␤»
 
-    my $date = Date.new(2025,7,20); # immutable Date
-    say $date.WHICH;                # OUTPUT: «ValueObjAt.new("Date|60876")␤»
+    my $date = Date.new(2025,7,20);  # immutable Date
+    say $date.WHICH.raku;            # OUTPUT: «ValueObjAt.new("Date|60876")␤»
 
 If you create a class that should be considered a value type, you should add
 a C<WHICH> method to that class that returns a C<ValueObjAt> object, for