# File lib/dnsruby/DNS.rb, line 118
    def initialize(config_info=nil)
      @do_caching = true
      @config = Config.new()
      @config.set_config_info(config_info)
      @resolver = Resolver.new(@config)
#      if (@resolver.single_resolvers.length == 0)
#        raise ArgumentError.new("Must pass at least one valid resolver address")
#      end
    end