docs: function ip(input, output) {
  
    var i = 0;
    var event = input[0];
    var out = [ output ];
    for ( var ips in event) {
      ++i;
      out.push([ ips, cyan + event[ips].counter + close ]);
    }
    if (i === 0) {
      return [];
    }
    out.push('', [ 'unique ip', ansi.underline.open + i + ansi.underline.close ],
      '');
    return out;
  }