# File lib/awsbase/awsbase.rb, line 403
    def symbolize(hash, force_array)
      ret = {}
      hash.keys.each do |key|
        val = hash[key]
        if val.is_a? Hash
          val = symbolize(val, force_array)
          if force_array.include? key
            val = [val]
          end
        elsif val.is_a? Array
          val = val.collect { |x| symbolize(x, force_array) }
        end
        ret[key.underscore.to_sym] = val
      end
      ret
    end