if you have a @labels instance variable, include this to serialize them nicely as an array, rather than as a nasty set.
# File lib/sup/source.rb, line 174 def after_unmarshal! @labels = Set.new(@labels.map { |s| s.to_sym }) end
# File lib/sup/source.rb, line 168 def before_marshal # can return an object c = clone c.instance_eval { @labels = @labels.to_a.map { |l| l.to_s } } c end