# File lib/yadis/manager.rb, line 131
  def discover(filter=nil)
    y = YADIS.new(@url)
    
    # a default filter which sends through everything.  you should
    # probably consider writing a custom filter and passing it in.
    unless filter
      filter = lambda {|s| s}
    end

    return [y.uri, y.filter_services(filter)]    
  end