docs: function parseRequestBody(request) {
      var parser = new HTTPParser(HTTPParser.REQUEST);
  
      parser.body = '';
      parser.bodyStart = 0;
  
      parser[HTTPParser.kOnBody | 0] = function (b, start) {
          if (!parser.bodyStart) {
              parser.bodyStart = start;
          }
  
          parser.body = b;
      };
  
      if (typeof request === 'string') {
          request = Buffer(request);
      }
  
      parser.execute(request, 0, request.length);
  
      return parser.body.slice(parser.bodyStart);
  }