# File lib/rbrainz/webservice/query.rb, line 350
      def submit_puids(tracks2puids)
        raise RequestError, 'Please supply a client ID' unless @client_id
        params = [['client', @client_id.to_s]] # Encoded as utf-8

        tracks2puids.each do |track_id, puid|
          track_id = Model::MBID.parse(track_id, :track).uuid
          params << ['puid', track_id + ' ' + puid ]
        end

        @webservice.post(:track, :params=>params)
      end