# File lib/aws/route_53/change_batch.rb, line 85
      def to_hash
        q = {}
        q[:hosted_zone_id] = hosted_zone_id
        q[:change_batch] = {}
        q[:change_batch][:comment] = comment if comment
        q[:change_batch][:changes] = []
        self.each { |change|
          q[:change_batch][:changes] << change.to_hash
        }
        q
      end