code: function (args) {
              if (!args) {
                  args = {};
              }
              
              var fixedDigits = args.fixedDigits;
              var min = args.min;
              var max = args.max;
              if (min === undefined) {
                  min = null;
              }
              if (max === undefined) {
                  max = null;
              }
              
              return spawn(IntegerConverter.prototype, {
                  _fixedDigits: fixedDigits,
                  _min: min,
                  _max: max
              });
          }
docs: A converter that accepts a numeric string.
  This does not support negative values.
  
  @example routes.get("/users/{id:int}", function(req, res, params) { })
  @example routes.get("/archive/{year:int({fixedDigits: 4})}", function(req, res, params) { })
  @example routes.get("/users/{id:int({min: 1})}", function(req, res) { })
  
  @param {Object} args An options Object that can contain "min", "max", and "fixedDigits"