    # File lib/compass/configuration/inheritance.rb, line 80
              def serialize_to_config(prop)
                if v = @data.raw(prop)
                  "#{prop} = #{v.inspect}"
                else
                  s = ""
                  if added = @data.instance_variable_get("@added_to_#{@attr}")
                    added.each do |a|
                      s << "#{prop} << #{a.inspect}\n"
                    end
                  end
                  if removed = @data.instance_variable_get("@removed_from_#{@attr}")
                    removed.each do |r|
                      s << "#{prop} >> #{r.inspect}\n"
                    end
                  end
                  if s[-1..-1] == "\n"
                    s[0..-2]
                  else
                    s
                  end
                end
              end