# File lib/redis/store/factory.rb, line 47
      def self.normalize_key_names(options)
        options = options.dup
        if options.key?(:key_prefix) && !options.key?(:namespace)
          options[:namespace] = options.delete(:key_prefix) # RailsSessionStore
        end
        options[:raw] = case
                        when options.key?(:serializer)
                          options[:serializer].nil?
                        when options.key?(:marshalling)
                          !options[:marshalling]
                        else
                          false
        end
        options
      end